TY  - RPRT
TI  - The oldest known Rocky Mountain bristlecone pines ( Pinus aristata Engelm.)
AU  - F.C. Brunstein
AU  - D.K. Yamaguchi
PY  - 1992
DO  - 10.2307/1551666
UR  - https://pubs.usgs.gov/publication/70016898
ID  - 70016898
ER  -