Cita APA (7a ed.)

Beri G C. (2013). Marketing Research (5th.). McGraw Hill.

Cita Chicago Style (17a ed.)

Beri G C. Marketing Research. 5th. New Delhi: McGraw Hill, 2013.

Cita MLA (9a ed.)

Beri G C. Marketing Research. 5th. McGraw Hill, 2013.