TY - BOOK AU - Bluman,Allan G. TI - Elementary statistics: a step by step approach SN - 0256234310 (pbk) U1 - 519.5 21 PY - 1997/// CY - Boston, Mass. PB - WCB/McGraw-Hill KW - Statistics N1 - Previous ed.: 1995; Includes bibliographical references and index ER -