00560nam a2200181   450000100060000000300030000600500170000900800410002603500190006703500180008605000200010410000210012424500580014525000110020326000180021495201290023299900170036110286UR20220427194421.0061102|||||||||||||||||||||||||||||||| d  a(janium) 10275  a(janium)10275 4aGF75b.N38 19961 aNava C., Roberto10aEcosistemab : la unidad de la naturaleza y el hombre  a3a ed.  bTrillasc1996  00102lcc40708AGaURBCbURBCcGENd2022-04-27eCompral0oGF75 N38 1996 p0066119r2022-04-27 00:00:00w2022-04-27yLIBRO  c22447d22447