Dyfyniad APA
Cooper, D. R., & Schindler, P. S. (2014). Business research methods (12th ed.). McGraw-Hill/Irwin.
Dyfyniad Arddull Chicago
Cooper, Donald R., and Pamela S. Schindler. Business Research Methods. 12th ed. New York, NY: McGraw-Hill/Irwin, 2014.
Dyfyniad MLA
Cooper, Donald R., and Pamela S. Schindler. Business Research Methods. 12th ed. McGraw-Hill/Irwin, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.