Παραπομπή APA

Steinbrink, J. P. (1989). Dartnell sales manager's hand book /14e (14th ed.). UBSPD.

Παραπομπή Chicago Style

Steinbrink, John P. Dartnell Sales Manager's Hand Book /14e. 14th ed. New Delhi: UBSPD, 1989.

Παραπομπή MLA

Steinbrink, John P. Dartnell Sales Manager's Hand Book /14e. 14th ed. UBSPD, 1989.