Nicholson Michael Formal theories in international relations - Cambridge Cambridge University Press 1990 - xiii, 254p. cm. - Cambrige studies in international relations; 3 . Bibliography p234-242; Includes Index; Appendix p234-233 Standard No.: 123,394 Source: Textual Subjects--Topical Terms: HISTORY Dewey Class. No.: V1:19.N9, N0