Cooper, D. R., & Schindler, P. S. (2011). Business research methods (11th ed.). New York: McGraw-Hill/Irwin.
Chicago Style citaatCooper, Donald R., en Pamela S. Schindler. Business Research Methods. 11th ed. New York: McGraw-Hill/Irwin, 2011.
MLA citatieCooper, Donald R., en Pamela S. Schindler. Business Research Methods. 11th ed. New York: McGraw-Hill/Irwin, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.