Cita APA

Wallis, W. A., & Roberts, H. V. (1962). The nature of statistics. New York: Collier.

Citación estilo Chicago

Wallis, W. Allen, y Harry V. Roberts. The Nature of Statistics. New York: Collier, 1962.

Cita MLA

Wallis, W. Allen, y Harry V. Roberts. The Nature of Statistics. New York: Collier, 1962.