Bingham, F. G., Gomes, R., & Knowles, P. A. (2005). Business marketing (3rd ed.). McGraw-Hill/Irwin.
Dyfyniad Arddull ChicagoBingham, Frank G., Roger Gomes, and Patricia A. Knowles. Business Marketing. 3rd ed. Boston: McGraw-Hill/Irwin, 2005.
Dyfyniad MLABingham, Frank G., et al. Business Marketing. 3rd ed. McGraw-Hill/Irwin, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.