C. Brooks John. (2002). Short Cycle Selling--Beating Your Competitors in the Sales Race (In lần thứ 1.). American: MC Graw Hill.
Styl cytowania ChicagoC. Brooks John. Short Cycle Selling--Beating Your Competitors in the Sales Race. In lần thứ 1. American: MC Graw Hill, 2002.
Styl cytowania MLAC. Brooks John. Short Cycle Selling--Beating Your Competitors in the Sales Race. In lần thứ 1. American: MC Graw Hill, 2002.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..