APA استشهاد

Levin,Richard I. (2002). Statistics for Management (7th ed.). Pearson Education.

استشهاد بنمط شيكاغو

Levin,Richard I. Statistics for Management. 7th ed. India: Pearson Education, 2002.

MLA استشهاد

Levin,Richard I. Statistics for Management. 7th ed. Pearson Education, 2002.