APA
Wrenn B. . S. . R. &. L. D., . (2004). Marketing research. Jaico Publishing house, Mumbai: .
Chicago
Wrenn Bruce Stevens Robert & Loudon David, . 2004. Marketing research. Jaico Publishing house, Mumbai: .
Harvard
Wrenn B. . S. . R. &. L. D., . (2004). Marketing research. Jaico Publishing house, Mumbai: .
MLA
Wrenn Bruce Stevens Robert & Loudon David, . Marketing research. Jaico Publishing house, Mumbai: . 2004.