APA

Beri G. C., . (2000). Marketing research. : TATA McGraw-Hill Publishing Co., New Delhi.

Chicago

Beri G C, . 2000. Marketing research. : TATA McGraw-Hill Publishing Co., New Delhi.

Harvard

Beri G. C., . (2000). Marketing research. : TATA McGraw-Hill Publishing Co., New Delhi.

MLA

Beri G C, . Marketing research. : TATA McGraw-Hill Publishing Co., New Delhi. 2000.