@misc{indiciae6b6464f2dee1, title = {WELLMAP, a Fortran computer program for the generation of maps of specified geographic areas with a variety of well symbols available to depict the current status of given oil and gas drilling}, author = {E.G. Boyce and Robert M. Turner}, year = {1983}, doi = {10.3133/ofr83155}, url = {https://pubs.usgs.gov/publication/ofr83155}, note = {Source identifier: ofr83155} }