Arney, William Ray Understanding statistics in the social science / William Ray Arney - New York : W.H. Freeman and Company , 1990 - xvii, 524 p. : ill., graphs., tabs. ; 23 cm. Includes index ISBN: 71672006X Subjects--Topical Terms: Ciencias sociales --- Métodos estadísticos LC Class. No.: HA 29 / A74 1990