Mendenhall, William. Introduction to probability and statistics / William Mendenhall. - 6th ed. - Boston : Duxbury Press, c1983. - xii, 646, 64 p. : ill. ; 24 cm. ISBN: 0871503654 LCCN: 82014731 LC Class. No.: QA276 / .M425 1983 Dewey Class. No.: 519.2