"Marx, the Manifesto, and the Soviet Union Today," Ohio University Review, Vol. 6 (1964): 63-76. Bibliography of works in languages other than Russian on "History of Thought and Culture" (items 1563-1626) in Russia and the Soviet Union: A Bibliographic Guide to Western-Language Publications (ed, Paul L. Horecky), Chicago: University of Chicago Press, 1964, 324-335. "Philosophic Revisions of Marxism," Proceedings of the Thirteenth International Congress of Philosophy (Mexico City, 1963), Mexico, D. F.: Universidad Nacional Autónoma de México, 1964, Vol. 9: 397-407. Vasil'ev and the Development of Many-Valued Logics" in Contributions to Logic and Methodology in Honor of J. M. Bocheński (ed. Anna-Teresa Tymieniecka and Charles Parsons), Amsterdam: North Holland, 1965, 315-326. "Economic Crime and Punishment," Survey, No. 57 (1965): 67-72. "Leszek Kołakowski and the Revision of Marxism" and "Bibliography of the Principal Writings of Leszek Kołakowski" in European Philosophy Today (ed. George L. Kline), Chicago: Quadrangle Books, 1965, 113-156 and 157-163. (Reprinted, without footnotes or bibliography, in New Writing of East Europe [ed. George Gömöri and Charles Newman], Chicago: Quadrangle Books, 1968, 82-101.) Fifteen articles on Russian philosophy and philosophers in The Encyclopedia of Philosophy (ed. Paul Edwards), New York: Macmillan and Free Press, 1967, (8 vols.): Bazarov, V. A., 1: 262; Bogdanov, A. A., 1: 331; Chicherin, B. N., 2:86-87; Frank, S.L., 3:219-220; Leontyev, K. N., 4:436-437; Lunacharski, A. V., 5:109; Pisarev, D. I., 6:312; "Russian Philosophy," 7:258-268; Shestov, Leon, 7:432-433; Skovoroda, G. S., 7:461; Solovyov, V. S., 7:491-493; Volski, Stanislav, 7:261-262.