Introduction to work study. - 3rd (rev.) ed. - Geneva : International Labour Office, 1979, c1978. - xiv, 442 p. : ill. ; 28 cm. Errata slip inserted. Bibliography: p. 439-441. ISBN: 922101939X LCCN: 82119466 Subjects--Topical Terms: Work measurementMethods engineering Dewey Class. No.: 658.542