Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Cooper, Donald R., i Pamela S. Schindler. Business Research Methods. 11th ed. Boston: McGraw-Hill Irwin, 2011.

Cita MLA (9th ed.)

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