Παραπομπή APA

Foster, T. R. (1994). 101 ways to get more business. UBSPD.

Παραπομπή Chicago Style

Foster, Timothy R.V. 101 Ways to Get More Business. New Delhi: UBSPD, 1994.

Παραπομπή MLA

Foster, Timothy R.V. 101 Ways to Get More Business. UBSPD, 1994.