MLA

Letiche, John M. International Economic Policies and Their Theoretical Foundations : a Source Book. New York: Academic Press, 1982.

APA

Letiche, J. M. (1982). International economic policies and their theoretical foundations : a source book. New York: Academic Press.

Chicago

Letiche, John M., ed. International Economic Policies and Their Theoretical Foundations: A Source Book. New York: Academic Press, 1982.