TY  - RPRT
TI  - PBDAT; a program for reduction of Pb-U-Th isotope data, for use with HP-86/87 microcomputers
AU  - K.R. Ludwig
PY  - 1984
DO  - 10.3133/ofr84113
UR  - https://pubs.usgs.gov/publication/ofr84113
ID  - ofr84113
ER  -