00394nam a2200157 a 450000500170000010000060001711000170002324500290004026000290006930000150009849000170011396400250013099700120015599900170016795200520018420251203091035.0  d_  aMarvin, F.S.  aScience and Civilization  aLoNew DelhionbOUPc1926  a350p, 20cm  aUnity series  bEngc100de010fg_  a45307 C  c27758d27758  00104070aPUbPUd1998-04-08l0o p45307yBK