Citazione APA

Freund, J. E., & Perles, B. M. (1999). Statistics a first course (7th ed.). Prentice-Hall of India.

Stile di citazione Chicago

Freund, John E., e Benjamin M. Perles. Statistics a First Course. 7th ed. London: Prentice-Hall of India, 1999.

Citazione MLA

Freund, John E., e Benjamin M. Perles. Statistics a First Course. 7th ed. Prentice-Hall of India, 1999.