APA aipamena

Beri, G. (1993). Marketing research/2e (2nd ed.). Tata McGraw Hill.

Chicago Style aipamena

Beri, G.C. Marketing Research/2e. 2nd ed. Tata McGraw Hill, 1993.

MLA aipamena

Beri, G.C. Marketing Research/2e. 2nd ed. Tata McGraw Hill, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.