Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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