1. The Bureau's Twentieth Anniversary Report, from which this article has been adapted, contains a further description of these activities and a complete bibliography. Copies of this report as well as a supplementary bibliography may be ob tained from the Librarian, Bureau of Applied Social Research, Columbia University, 605 W. 115th St., New York 25, N. Y.
2. Lazarsfeld, Paul F., Bernard Berelson, and Hazel Gaudet, The People's Choice (2nd ed.), N. Y. : Columbia University Press, 1948.
3. Berelson, Bernard, Paul F. Lazarsfeld, and William N. McPhee, Voting : A Study of Opinion Formation in a Presiden tial Election (in cooperation with the Univ. of Chicago and Columbia), Chicago: Univ. of Chicago Press, 1954. See also Kaplan, Norman, "Reference Group Theory and Voting Behavior, " unpubl. doctoral dissertation, Columbia Univ., 1955; and Kitt, Alice S., and David B. Gleicher, "Deter minants of Voting Behavior, " Public Opinion Q., XIV (1950), 393-412.
4. McPhee, William N., ed., "A Progress Report on the 1950 Congressional Election Study, " unpubl. BASR Report, 1952. See also Lazarsfeld, Paul F., and Morris Rosenberg, "The Contribution of the Regional Poll to Political Understanding, " Public Opinion Q., XIII (1949-50), 570-86; and Meyer, Alan S., "A Study of Autism in the Social Perception of Group Voting Behavior, " unpubl. master's essay, Columbia Uni versity, 1951.
5. Lipset, Seymour M., James S. Coleman, and Martin A. Trow, Union Democracy, Glencoe, Ill.: Free Press, 1956. See also Coleman, James S., "Political Cleavage Within the International Typographical Union, " unpubl . doctoral dissertation, Columbia Univ., 1955; Lipset, Seymour M., "The Political Process in Trade Unions: A Theoretical Statement, " in Freedom and Control in Modern Society, M. Berger, T. Abel, and C. Page, eds., N. Y.: Van Nostrand, 1954, 82-124; and Lipset, Seymour M., "Demo cracy in the International Typographical Union, " in Year book of the American Philosophical Society, 1955, 211-18.
6. Sills, David L., The Volunteers, Glencoe, Ill.: Free Press, 1957.
7. Kracauer, Siegfried, and Paul L. Berkman, "Attitudes Toward Various Communist Types in Hungary, Poland and Czechoslovakia, " Social Problems, III (1955), 104-14; and Kracauer, Siegfried, and Paul L. Berkman, Satellite Men tality, N. Y.: Praeger, 1956.
8. Lerner, Daniel, The Passing of Traditional Society, Glen coe, Ill.: Free Press, 1958 forthcoming. See also Kendall, Patricia L., and Benjamin B. Ringer, "Climates of Opinion in Egypt, " unpubl. BASR Report, 1951; Kendall, Patricia L., "The Ambivalent Character of Nationalism Among Egyptian Professionals, " Public Opinion Q., XX (1956), 277-89;
McPhee, William N., and Rolf Meyersohn, "Syrian Attitudes Towards America and Russia, " unpubl. BASR Report, 1952; Ringer, Benjamin B., and David L. Sills, "Political Extrem ists in Iran, " Public 0pinion Q., XVI (1952-53), 689-701; and Stycos, J. Mayone, "Greek Attitudes toward the U.S., U.S.S.R., Great Britain, and France, " unpubl. BASR Report, 1951. For a general description of this research, see Glock, Charles Y., "The Comparative Study of Communications and Opinion Forma tion, " Public Opinion Q., XVI (1952-53), 512-23.
9. Benson, Lee, "Research Problems in American Political His toriography" (BASR jointly with the Columbia Univ. Planning Project for Advanced Training), in Common Frontiers of the Social Sciences, M. Komarovsky, ed., Glencoe, Ill.: Free Press, 1957.
10. Benson, Lee, and Thomas J. Pressly, "Can Differences in the Interpretation of the Causes of the American Civil War be Resolved Objectively?" Paper discussed at session of Amer. Historical Assoc., Dec. 29, 1956. Unpubl. BASR Report, 1956.
11. Lipset, Seymour M., Paul F. Lazarsfeld, Allen H. Barton, and Juan Linz, "The Psychology of Voting: An Analysis of Political Behavior, Handbook of Social Psychology, G. Lind zey, ed., Boston: Addison-Wesley, 1954, Vol. II, 1124-75.
12. Hyman, Herbert H., Political Socialization, Glencoe, Ill.: Free Press, 1958 (forthcoming).