TY  - RPRT
TI  - U-Th-Pb measurements of Luna 20 soil
AU  - M. Tatsumoto
PY  - 1973
DO  - 10.1016/0016-7037(73)90202-0
UR  - https://pubs.usgs.gov/publication/70010125
ID  - 70010125
ER  -