Gaya APA

HAwkins, D, I., Tull, D, S. (1987). Marketing Research : Measurement and Method (Fourth Ed.). New York: Macmillan Publishing Company, Inc..

Gaya MLA

HAwkins, Del, I.., Tull, Donald, S. "Marketing Research : Measurement and Method". Fourth Ed. New York: Macmillan Publishing Company, Inc., 1987. Text.