Herzberg, P. A. (1983). Principles of statistics. Wiley.
Cita Chicago (17th ed.)Herzberg, Paul A. Principles of Statistics. New York: Wiley, 1983.
Cita MLA (9th ed.)Herzberg, Paul A. Principles of Statistics. Wiley, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.