Gaya APA

Johnston, M, W, J, M, W. (2006). Churchill/ford/walker's : Sales force management.-- (Ed. 8th.--). America: McGraw-Hill.

Gaya MLA

Johnston, Mark, W., Johnston,, Mark, W.. "Churchill/ford/walker's : Sales force management.--". Ed. 8th.-- America: McGraw-Hill, 2006. Buku.