Mandell, M. I. (1981). Marketing (2nded.). Prentice-Hall.
Cita Chicago (17th ed.)Mandell, Maurice I. Marketing. 2nded. Englewood Cliffs: Prentice-Hall, 1981.
Cita MLA (9th ed.)Mandell, Maurice I. Marketing. 2nded. Prentice-Hall, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.