TY  - RPRT
TI  - A program in Hewlett-Packard BASIC for X-Y plotting and line-fitting of isotopic and other data
AU  - K.R. Ludwig
PY  - 1979
DO  - 10.3133/ofr791641
UR  - https://pubs.usgs.gov/publication/ofr791641
ID  - ofr791641
ER  -