@article{article02f48664,
title   = {Carta do potencial de risco a contaminacao das aguas subterraneas e do pontencial agricola, regiao de ribeirao preto, sp, brasil},
author = {Zuquette, Lázaro Valentin and Pejon, Osni José and Gandolfi, Nilson and Sinelli, O},
year = {1993},
journal   = {Geociencias}
}