Gaya APA

Johnston, M, W. (2009). Churchill/ford/walker's sales force management / Mark W. Johnston, Greg W. Mashall (Ed. 9). New York: McGill Institute of Islamic Studies.

Gaya MLA

Johnston, Mark, W.. "Churchill/ford/walker's sales force management / Mark W. Johnston, Greg W. Mashall". Ed. 9 New York: McGill Institute of Islamic Studies, 2009. Text.