00397ntaaa2200157 45000030003000000050017000030080021000200400037000410820017000781000020000952450047001152500010001622600042001723000010002146500015002240120251027202717.00714s1973 ag 01 aAR-BaBNbspacAR-BaBNeaacrdRIC a575.0000 J54 aJennings, H.S. aBases biológicas de la naturaleza humana a1 ed. aBuenos Aires : bEspasa-Calpe, c1942 a378 p agenética