@inproceedings{inproceedingseb0d3748,
title   = {Effects of heptachlor insecticide use in the ceveiro micro basin, brazil: a proposed study},
author = {Sparovek, Gerd and Freitas, J R and Silva, Paulo Marcos da and Lawrence, J and Mcduffie, N M and Mcduffie, H H},
year = {1992},
publisher = {Centre for Agricultural Medicine/University of Saskatchewan},
booktitle   = {International Symposium: Issues in Health, Safety and Agriculture}
}