Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.