Sprowls, R. Clay. Elementary statistics for students of social science and business/ Clay, Sprowls, R. - New York, McGraw-Hill, 1955. - 392 p. illus. 24 cm. LCCN: 55006867 Subjects--Topical Terms: Statistics. LC Class. No.: HA29 / .S66 Dewey Class. No.: 310 / SPE 1955