APA

Zikmund W. G., Babin B. J., . (2007). Essentials of marketing research. New Delhi: Cengage learning.

Chicago

Zikmund William G, Babin Barry J, . 2007. Essentials of marketing research. New Delhi: Cengage learning.

Harvard

Zikmund W. G., Babin B. J., . (2007). Essentials of marketing research. New Delhi: Cengage learning.

MLA

Zikmund William G, Babin Barry J, . Essentials of marketing research. New Delhi: Cengage learning. 2007.