Παραπομπή APA

Keller, G. (2009). Statistics for management. Cengage Learnig India.

Παραπομπή Chicago Style

Keller, Gerald. Statistics for Management. N.Delhi: Cengage Learnig India, 2009.

Παραπομπή MLA

Keller, Gerald. Statistics for Management. Cengage Learnig India, 2009.