TY - BOOK AU - Spence,Janet T. AU - Underwood,Benton J. TI - Elementary statistics T2 - The Century psychology series AV - HA29.E43 1968 .E43 1968 U1 - 519.5/02415 19 PY - 1968///] CY - New York PB - Appleton-Century-Crofts KW - Psychology KW - Statistical methods KW - Psychometrics N1 - First ed. by B. J. Underwood and others; Bibliographical footnotes ER -