Book Reviews : Sheldon G. Levy. Inferential Statistics in the Behavioral Sciences. New York: Holt,Rinehart and Winston,1968. Pp. xiv + 267. $7.50

Hodges, J. L. and Lehmann, E. L. Basic Concepts of Probability and Statistics. San Francisco: Holden-Day, Inc., 1964.

Mood, Alexander M. and Graybill, Franklin A. Introduction to the Theory of Statistics (2nd ed.). New York: McGraw-Hill Book Company, Inc., 1963.

Siegel, S. Nonparametric Statistics for the Behavioral Sciences. New York: McGraw-Hill Book Company, Inc., 1956.