@misc{indiciaeebefbf6b21a6, title = {Mortality among bobwhites confined to a heptachlor contaminated environment}, author = {J.F. Kreitzer and J. W. Spann}, year = {1968}, doi = {10.2307/3799564}, url = {https://pubs.usgs.gov/publication/5221270}, note = {Source identifier: 5221270} }