@misc{indiciaeb51c4fd1ea06, title = {JKPLOT version 2.01 a device-independent plotting system written in QuickBasic for an IBM PC compatible microcomputer}, author = {John O. Kork}, year = {1992}, doi = {10.3133/ofr91450b}, url = {https://pubs.usgs.gov/publication/ofr91450B}, note = {Source identifier: ofr91450B} }