APA استشهاد

Thomas, s. E. (1925). Elements of economics (10ed.). The Donnington press; Sir I. Pitman & Sons, ltd.

استشهاد بنمط شيكاغو

Thomas, s Evelyn. Elements of Economics. 10ed. St. Albans, London: The Donnington press; Sir I. Pitman & Sons, ltd, 1925.

MLA استشهاد

Thomas, s Evelyn. Elements of Economics. 10ed. The Donnington press; Sir I. Pitman & Sons, ltd, 1925.