Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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