00573nam a2200181 i 4500 1/11151 760211s1975 sz b i00010 eng 9221011984 11505 DLC GR-PeUP 331.257 2 AL Allenspach, Heinz. Flexible working hours / Heinz Allenspach. Geneva : International Labour Office, 1975. vi, 64 p. ; 24 cm. Bibliography: p. 61-64. Hours of labor, Flexible. INST UNIPILB MAIN 20040709 331.257 2 AL 00107484 00107484 LOAN 0 1