00391ntaaa2200157 45000030003000000050017000030080021000200400037000410820017000781000022000952450031001172500010001482600053001583000010002116500012002210120251027202711.00714s1973 ag 01  aAR-BaBNbspacAR-BaBNeaacrdRIC a501.0000 Su5 aSullivan, J.W.N.  aThe limitations of science a1 ed. aNew York : bNew American Library, cc1933, 1956 a192 p aciencia