Johnston, M. W. (2008). Relationship SellingMark W. Johnston and Greg W. Mashall. McGraw-Hill.
Cita Chicago Style (17a ed.)Johnston, Mark W. Relationship SellingMark W. Johnston and Greg W. Mashall. McGraw-Hill, 2008.
Cita MLA (8a ed.)Johnston, Mark W. Relationship SellingMark W. Johnston and Greg W. Mashall. McGraw-Hill, 2008.
Precaución: Estas citas no son 100% exactas.