Nickels, W. G. (1982). Marketing principles. Englewood Cliffs, N.J: Prentice-Hall.
Trích dẫn kiểu ChicagoNickels, William G. Marketing Principles. Englewood Cliffs, N.J: Prentice-Hall, 1982.
Deismireacht MLANickels, William G. Marketing Principles. Englewood Cliffs, N.J: Prentice-Hall, 1982.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.