Cita APA (7th ed.)

Boyd, H. W. (1989). Marketing research: Text and cases (7ª ed.). Irwin.

Cita Chicago (17th ed.)

Boyd, Harper W. Marketing Research: Text and Cases. 7ª ed. Irwin, 1989.

Cita MLA (9th ed.)

Boyd, Harper W. Marketing Research: Text and Cases. 7ª ed. Irwin, 1989.