Introduction to business & economic statistics [by] John R. Stockton [and] Charles T. Clark. Stockton, John Robert, 1903- Clark, Charles Tallifero, joint author. Statistics. HA29 .S822 1971 311 STI Bibliography: p. 90-93 (2d group) Cincinnati, South-western Pub. Co. [1971] [1971] 1971 Text x, 670, 100 p. eng