Citazione APA

Cooper, D. R. S. (2006). Business research methods (9 edition.).

Stile di citazione Chicago

Cooper, Donald R; Schindler. Business Research Methods. 9 edition. Tata Mc Graw Hill: New Delhi, 2006.

Citazione MLA

Cooper, Donald R; Schindler. Business Research Methods. 9 edition. 2006.