Withagen Cees Economic theory and international trade in natural - Berlin Springer-Verlag 1985 - vi,172p cm. - Lecture Notes in Economics and Mathematical Systems. 253 . Bibliography: P 166-172 ISBN: 3540159703 DM 3300 Source: 468, 19/10/1987, Sheetal General Book Subjects--Topical Terms: Australia Dewey Class. No.: X:54:(B), M5