APA

malhotra n., Birks D., . (2006). Marketing Research. London: pearson Education.

Chicago

malhotra naresh, Birks David, . 2006. Marketing Research. London: pearson Education.

Harvard

malhotra n., Birks D., . (2006). Marketing Research. London: pearson Education.

MLA

malhotra naresh, Birks David, . Marketing Research. London: pearson Education. 2006.