Παραπομπή APA

Robert, H. D. (1998). Entrepreneurship (4th ed.). Irwin McGraw-Hill.

Παραπομπή Chicago Style

Robert, Hisrich D. Entrepreneurship. 4th ed. Boston: Irwin McGraw-Hill, 1998.

Παραπομπή MLA

Robert, Hisrich D. Entrepreneurship. 4th ed. Irwin McGraw-Hill, 1998.