Cita APA (7th ed.)

Lehmann, D. R., & Gupta, S. (1998). Marketing research. Addison-Wesley.

Cita Chicago (17th ed.)

Lehmann, Donald R., i Sunil Gupta. Marketing Research. Massachusetts: Addison-Wesley, 1998.

Cita MLA (9th ed.)

Lehmann, Donald R., i Sunil Gupta. Marketing Research. Addison-Wesley, 1998.