APA استشهاد

Harris, S. E. (1957). International and interregional economics.

استشهاد بنمط شيكاغو

Harris, Seymour E. International and Interregional Economics. McGraw-Hill book Co, Inc, NewYork, 1957.

MLA استشهاد

Harris, Seymour E. International and Interregional Economics. 1957.