Mendenhall, William. Statistics for psychology / William Mendenhall, James T. McClave, Madelaine Ramey. - 2d ed. - North Scituate, Mass. : Duxbury Press, c1977. - ix, 502 p. : ill. ; 24 cm. ISBN: 0878721266 LCCN: 77023194 LC Class. No.: BF39 .M45 1977 / .M45 1977 Dewey Class. No.: 519.5/02/415