APA استشهاد

Fischer, W. (1971). middle east: A physical geography (6th ed.). Methuen.

استشهاد بنمط شيكاغو

Fischer, W.B. Middle East: A Physical Geography. 6th ed. London: Methuen, 1971.

MLA استشهاد

Fischer, W.B. Middle East: A Physical Geography. 6th ed. Methuen, 1971.