by William Ascher, Barbara Hirschfelder-Ascher. 197 pgs.
by Harold D. Lasswell. 526 pgs.
by Harold D. Lasswell. 178 pgs.
by Harold D. Lasswell, Dorothy Blumenstock. 410 pgs.
by Harold D. Lasswell. 264 pgs.
by Harold D. Lasswell, Nathan Leites. 402 pgs.
by Seymour M. Farber, Roger H. L. Wilson. 340 pgs.
by Unesco. 718 pgs.
by Mark C. Smith. 354 pgs.
by Arnold Brecht. 609 pgs.
by Herbert J. Storing. 344 pgs.
by Leon Bramson, George W. Goethals. 438 pgs.