APA استشهاد

Harries, O. E. (1991). America`s purpose: New visions of U.S. foreign policy.

استشهاد بنمط شيكاغو

Harries, Owen; Ed. America`s Purpose: New Visions of U.S. Foreign Policy. New Delhi, Macmillan India, 1991.

MLA استشهاد

Harries, Owen; Ed. America`s Purpose: New Visions of U.S. Foreign Policy. 1991.