APA Edition Citation

Wallis, W. A., & Roberts, H. V. (1956). The nature of statistics. Collier Books.

Chicago Edition Citation

Wallis, W. Allen, and Harry V. Roberts. The Nature of Statistics. New York: Collier Books, 1956.

MLA Edition Citation

Wallis, W. Allen, and Harry V. Roberts. The Nature of Statistics. Collier Books, 1956.