Cita APA (7th ed.)

Cooper, D. R., & Schindler, P. S. (2011). Business research methods (11th ed.). McGraw-Hill Higher Education.

Cita Chicago (17th ed.)

Cooper, Donald R., i Pamela S. Schindler. Business Research Methods. 11th ed. New York: McGraw-Hill Higher Education, 2011.

Cita MLA (8th ed.)

Cooper, Donald R., i Pamela S. Schindler. Business Research Methods. 11th ed. McGraw-Hill Higher Education, 2011.