APA Style

Metz, H, C. (1993). Saudi Arabia : a country study / Helen chapin. Metz (5th.rd.). Washington D.C.: Federal Research Division, Library of Congress..

MLA Style

Metz, Helen, Chapin.. "Saudi Arabia : a country study / Helen chapin. Metz". 5th.rd. Washington D.C.: Federal Research Division, Library of Congress., 1993. หนังสือ (Book).