00358nam a2200145   45000010005000000030003000050050017000080080041000250350018000660350017000840500022001011000014001232450056001372600019001938487UR20220428113513.0061102|||||||||||||||||||||||||||||||| d  a(janium) 8476  a(janium)8476 4aHC79b.E5N69 19821 aNovik, I.10aSociedad y naturalezab : problemas socioecologicos  bProgresoc1982