APA-Zitierstil (7. Ausg.)

Fenvessy, S. J. (1976). Keep your customers: (and keep them happy). Dow Jones-Irwin.

Chicago-Zitierstil (17. Ausg.)

Fenvessy, Stanley J. Keep Your Customers: (and Keep Them Happy). Homewood, Ill: Dow Jones-Irwin, 1976.

MLA-Zitierstil (9. Ausg.)

Fenvessy, Stanley J. Keep Your Customers: (and Keep Them Happy). Dow Jones-Irwin, 1976.