Marić, D. Adapting working hours to modern needs : the time factor in the new approach to working conditions / D. Marić. - Geneva : International Labour Office, 1977. - viii, 50 p. : ill. ; 24 cm. Bibliography: p. 47-50. ISBN: 9221016595. 9221016587 Nat. Bib. No.: Sw*** Subjects--Topical Terms: Hours of labor. Dewey Class. No.: 331.2 / MAA 1977