01020nam--2200349---450-99000216490020331620090225091823.0000216490USA01000216490(ALEPH)000216490USA0100021649020041112d1971----km-y0itay0103----baengCH||||||||001yy<<The>> technical and social changes in the world's portsA. A. EvansGenevaInternational Labour Office1971X, 264 p.23 cm20012001001-------2001387.10EVANS,Archibald A.568522ITsalbcISBD990002164900203316387.10 EVA 1 (IEP V 27)9123 E.C.IEP V00199145BKECOSIAV41020041112USA010846RSIAV29020090225USA010918Technical and social changes in the world's ports1037912UNISA