00350nam a2200133Ia 450000500170000000800410001702000130005810000600007124500440013126000090017530000070018494200080019199900170019920241209164934.0241209s9999 xx 000 0 und d afipa1872 aCARLOS MIGUEL QUISPE MATLAS, WUALTER SEMBRANO CBANILLAS 0aANÁLISIS QUÍMICOS MEDIO AMBIENTALES c1999 a82 yLIB c48609d48609