Cita APA (7th ed.)

COOPER, D. R., & SCHINDLER, P. S. (2011). Business research methods. McGraw-Hill Book Company.

Cita Chicago (17th ed.)

COOPER, Donald R., i Pamela S. SCHINDLER. Business Research Methods. McGraw-Hill Book Company, 2011.

Cita MLA (9th ed.)

COOPER, Donald R., i Pamela S. SCHINDLER. Business Research Methods. McGraw-Hill Book Company, 2011.