CHURCHILL GILBERT A. (2004). BASIC MARKETING RESEARCH (5TH.). SOUTH-WESTERN COLLEGE PUBLISHING CO.
Cita Chicago (17th ed.)CHURCHILL GILBERT A. BASIC MARKETING RESEARCH. 5TH. OHIO: SOUTH-WESTERN COLLEGE PUBLISHING CO, 2004.
Cita MLA (9th ed.)CHURCHILL GILBERT A. BASIC MARKETING RESEARCH. 5TH. SOUTH-WESTERN COLLEGE PUBLISHING CO, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.