Παραπομπή APA

Aljian, G. W. (1958). Purchasing Handbook. McGraw Hill.

Παραπομπή Chicago Style

Aljian, George W. Purchasing Handbook. New York: McGraw Hill, 1958.

Παραπομπή MLA

Aljian, George W. Purchasing Handbook. McGraw Hill, 1958.