Gaya APA

Rich, R, L, S, , , , , , , , , , , G, A. (2008). Management Of. A Sales Foprce Twelfth Edition . New York: Mc.Graw- Hill Companies ,Inc..

Gaya MLA

Rich, Rosann, L., Spiro,, , , , , , , , , , , Gregori, A.. "Management Of. A Sales Foprce Twelfth Edition". New York: Mc.Graw- Hill Companies ,Inc., 2008. Text.