An introduction to the theory of statistics
[by] G. Undy Yule and M. G. Kendall.

APA Citation

Yule, G. Udny (George Udny)., Kendall, M. G. (Maurice George). (1950). An introduction to the theory of statistics. 14 ed., rev. and enl. New York: Hafner Publishing Comp..

MLA Citation

Yule, G. Udny (George Udny), 1871-1951, and Maurice G. (Maurice George) Kendall. An Introduction to the Theory of Statistics. 14 ed., rev. and enl. New York: Hafner Publishing Comp., 1950.