00947nam--2200337---450-99000198465020331620050307144102.0000198465USA01000198465(ALEPH)000198465USA0100019846520040906d1971----km-y0itay0103----baengUS||||||||001yyMan's role in changing the face of the earthW. L. ThomasChicagoEd. University Press19711193 p.24 cm20012001001-------2001THOMAS,W. L.340699salbcISBD990001984650203316III.1. 1786(I L 45)62460 L.M.I LBKUMASIAV71020040906USA011729COPAT39020050307USA011441Man's role in changing the face of the earth1047215UNISA