Gaya APA

COOPER, D, R., SCHINDLER, P, S. (2014). BUSINESS RESEARCH METHODS (12). New York: MCGRAW-HILL INTERNATIONAL EDITION.

Gaya MLA

COOPER, DONALD, R.., SCHINDLER, PAMELA, S.. "BUSINESS RESEARCH METHODS". 12 New York: MCGRAW-HILL INTERNATIONAL EDITION, 2014. Text.