TY  - RPRT
TI  - Fossil and genetic history of a pinyon pine (Pinus edulis) isolate
AU  - Julio L. Betancourt
AU  - William Schuster
AU  - Jeffry B. Mitton
AU  - R. Scott Anderson
PY  - 1991
DO  - 10.2307/1940968
UR  - https://pubs.usgs.gov/publication/70014927
ID  - 70014927
ER  -