APA استشهاد

Johnston, M. W. M. (2013). Sales force management (11 edition.).

استشهاد بنمط شيكاغو

Johnston, Mark W; Marshall. Sales Force Management. 11 edition. Routledge, London, 2013.

MLA استشهاد

Johnston, Mark W; Marshall. Sales Force Management. 11 edition. 2013.