Cooper, Joseph David, 1917-1975. How to get more done in less time [electronic resource] / [by] Joseph D. Cooper.. — Garden City, N.Y., : Doubleday, [1962]. — x, 346 p. 21 cm. LCCN: 62011432 Subjects--Topical Terms: Industrial efficiency.Psychology, Applied. LC Class. No.: T58 / .C67