Night work : fifth Item on the agenda. - Geneva : International Labour Office (ILO) , 1989 - vols. : ill. ; 24 cm. - International Labour Conference, 76th Session 1989, Report 5(1). . Includes bibliographical references and index. ISBN: 9221066630 Subjects--Topical Terms: Shift systems--CongressesNight work --Congresses Gov. Doc. Class. No.: UN ILO ILC-76 (89) R-5 (1)