Richard, P. K. (1991). Sales and marketing management. Bill Publications.
Čikaški stil citiranjaRichard, P. Kerii. Sales and Marketing Management. New York: Bill Publications, 1991.
MLA način citiranjaRichard, P. Kerii. Sales and Marketing Management. Bill Publications, 1991.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.