Green, P. E. (1997). Research for marketing decisions (5thed.). Prentice-Hall.
Cita Chicago (17th ed.)Green, Paul E. Research for Marketing Decisions. 5thed. New Delhi: Prentice-Hall, 1997.
Cita MLA (9th ed.)Green, Paul E. Research for Marketing Decisions. 5thed. Prentice-Hall, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.