APA Style

Mortimer, L, R. (1989). Iran: a country study / Louis R. Mortimer (4th ed.). Washington D.C.: Federal Research Division, Library of Congress..

MLA Style

Mortimer, Louis, R.. "Iran: a country study / Louis R. Mortimer". 4th ed. Washington D.C.: Federal Research Division, Library of Congress., 1989. หนังสือ (Book).