@misc{indiciae37730db1a907, title = {A generalized program in Hewlett-Packard BASIC for creating, editing, and printing out data files for geochemical applications}, author = {K.R. Ludwig}, year = {1979}, doi = {10.3133/ofr791434}, url = {https://pubs.usgs.gov/publication/ofr791434}, note = {Source identifier: ofr791434} }