Παραπομπή APA

Bunke, H. (1980). Business horizone. Indiana University Graduate School of business.

Παραπομπή Chicago Style

Bunke, H.C. Business Horizone. Bloomington: Indiana University Graduate School of business, 1980.

Παραπομπή MLA

Bunke, H.C. Business Horizone. Indiana University Graduate School of business, 1980.