In 1940s McClelland joined the faculty of the San Francisco State College, where he became professor of history and international relations at the department of International Relations, and chairman of the division of social science. He was also visiting professor at the University of Michigan, department of Political Science, and joined the faculty as Professor, department of International Relations at the University of Southern California. One of his students at San Francisco State College was James N. Rosenau.
With Walter F. Buckley, Morton A. Kaplan, Karl W. Deutsch, Robert A. Dahl and David Easton McClelland was among the first to introduce General Systems Theory in the social sciences.[6] In his 1966 book "Theory and the International System" McClelland introduced the idea to apply general systems ideas in the study of international relations from different perspectives, which led to the definition of different approaches.[7]
In 1969 McClelland postulated the "wisdom approach", an approach that "invites scholars to prudently examine history and appreciate the precarious nature of human conduct, rather than being overwhelmed by masses of data, which more often than not lead to blind spots of partisanship".[8]
Publications
1955, Applications of General Systems Theory in International Relations
1960, The United Nations: the Continuing Debate. Chandler publishing. 1960
1960, Nuclear weapons, missiles, and future war: problem for the sixties.
1962, College teaching of international relations; problems of organization and collaboration. A report on applied and experimental studies of undergraduate college education in international relations.
1967, Theory of the International System. New York : The Macmillan Company.
1970, An Interaction Survey of the Middle East, with Anne Ancoli.
1972, International Events Interaction Analysis: Some Research Considerations. With, Edward E. Azar and Richard A. Brody (eds.) Beverly Hills: Sage Publications.
Articles
1958, "Systems and History in International Relations". In: General Systems Yearbook 3 (1958), p. 237.
1959, "A Classification of International Relations Theory" in: American Behavioral Scientist, Vol. 2, No. 4, 32–34 (1959)
1960, "The function of theory in international relations" in: Journal of Conflict Resolution 4 (1960), pp. 303–336.
1961, "The Acute International Crisis," in: World Politics, Vol. 14 (October 1961), p. 199.
1962, "General Systems and the Social Sciences," in: A Review of General Semantics, 18 (1962), 456.
1972, "The Beginning, Duration, and Abatement of International Crises: Comparisons in Two Conflict Arenas", in C. F. Hermann (ed.), International Crises: Insights from Behavioral Research (New York: Free Press, 1972).
Publications about McClelland
Charles P. Schleicher (1967), "Reviewed work(s): Theory of the International System by Charles A. McClelland", in: The Western Political Quarterly, Vol. 20, No. 1 (Mar., 1967), pp. 232–233