Παραπομπή APA

Doyle, L. A. (1952). Economics of business enterprise. McGraw Hill Book co.

Παραπομπή Chicago Style

Doyle, Leonard A. Economics of Business Enterprise. New York: McGraw Hill Book co, 1952.

Παραπομπή MLA

Doyle, Leonard A. Economics of Business Enterprise. McGraw Hill Book co, 1952.