00449ntaaa2200169   45000030003000000050017000030080021000200400037000410820017000782450035000952500010001302600054001403000010001945000036002046500017002407000022002570120251027202343.00714s1973  ag    01   aAR-BaBNbspacAR-BaBNeaacrdRIC  a300.1000 M55  aFundamentals of social science  a1 ed.  aNew York : bD. Appleton-Century Company, cc1946  a660 p  aPrincipios de ciencias sociales  asociología  aMerrill, Francis