Cita APA (7th ed.)
Cooper, D. R., & Schindler, P. S. (2001). Business research methods (7th ed.). Irwin/McGraw-Hill.
Cita Chicago (17th ed.)
Cooper, Donald R., i Pamela S. Schindler. Business Research Methods. 7th ed. Boston, Mass.: Irwin/McGraw-Hill, 2001.
Cita MLA (9th ed.)
Cooper, Donald R., i Pamela S. Schindler. Business Research Methods. 7th ed. Irwin/McGraw-Hill, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.