Youden, W. J. 1900-1971. Risk, choice and prediction an introduction to experimentation / W. J. Youden. - North Scituate, Mass. : Duxbury Press, 1974. - vii, 81 p. : ill. ; 23 cm. Includes bibliographical references. ISBN: 0878720553 Subjects--Topical Terms: Probabilities--Popular works.