00900nam--2200337---450-99000183964020331620050525131808.0000183964USA01000183964(ALEPH)000183964USA0100018396420040709d1960----km-y0itay0103----baengUS||||||||001yySocial changeJohn Eric NordskogNew YorkMcGraw-Hill1960VII, 423 p.24 cm20012001001-------2001NORDSKOG,John Eric127718ITsalbcISBD990001839640203316II.5.2089(VI soc I 8)3718 L.M.VI socBKUMASIAV71020040709USA011551COPAT79020050525USA011318Social Change453380UNISA