Παραπομπή APA

Harris, S. E. (1957). International and interregional economics. McGraw Hill Book Co.

Παραπομπή Chicago Style

Harris, Seymour E. International and Interregional Economics. New York: McGraw Hill Book Co, 1957.

Παραπομπή MLA

Harris, Seymour E. International and Interregional Economics. McGraw Hill Book Co, 1957.