Bluman, Allan G. Elementary statistics : a step by step approach / Allan G. Bluman. - 3rd ed. - Boston, Mass. : WCB/McGraw-Hill, c1997. - xxiv,687p.; ill. (some col.) ; 27 cm. Includes bibliographical references and index. ISBN: 0256234302 Subjects--Topical Terms: Statistics. Dewey Class. No.: 519.5 BLU