Gaya APA

Johnston, M, W., Marshall, G, W. (2009). Churchill/Ford/Walker's Sales Force Management (Ed. 9). New York: McGill Institute of Islamic Studies.

Gaya MLA

Johnston, Mark, W.., Marshall, Greg, W.. "Churchill/Ford/Walker's Sales Force Management". Ed. 9 New York: McGill Institute of Islamic Studies, 2009. Text.