APA način citiranja

Sielaff, T. J., & Aberle, J. W. (1969). Introduction to business: American enterprise in action. California: Wadsworth Publishing company.

Čikaški stil citiranja

Sielaff, Theodore J., i John W. Aberle. Introduction to Business: American Enterprise in Action. California: Wadsworth Publishing company, 1969.

MLA način citiranja

Sielaff, Theodore J., i John W. Aberle. Introduction to Business: American Enterprise in Action. California: Wadsworth Publishing company, 1969.