00518nam a2200181Ia 4500001001000000003001000010005001700020008004100037020001500078040000900093082002000102100001800122245008200140264003200222300003000254490002400284650002800308000002827MX-MdCICY20260521090216.0240627s1972    xxka   f e    0|0 | und d  a0330243233  cCICY04aC 503.092bA84a1 aAsimov, Issac10aAsimov´s biographical encyclopedia of science and technology /cIssac Asimov31aLondon :bPan Books, c1972  a805 p. :bOtros ;c20 cm.0 aPan reference books14aTECNOLOGIAxBIOGRAFIAS.