Youdale, P. J. (1973). Sales Management for Profit. Business Books.
Čikaški stil citiranjaYoudale, Peter J. Sales Management for Profit. London: Business Books, 1973.
MLA način citiranjaYoudale, Peter J. Sales Management for Profit. Business Books, 1973.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.