Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.