Παραπομπή APA

Freedman, D., Pisani, R., & Purves, R. (2010). Statistics/4th ed. Viva Books.

Παραπομπή Chicago Style

Freedman, David, Robert Pisani, και Roger Purves. Statistics/4th Ed. New Delhi: Viva Books, 2010.

Παραπομπή MLA

Freedman, David, et al. Statistics/4th Ed. Viva Books, 2010.