TY  - RPRT
TI  - Inter- and intraspecific mitochondrial DNA variation in North American bears (Ursus)
AU  - Matthew A. Cronin
AU  - Steven C. Amstrup
AU  - Gerald W. Garner
AU  - Ernest R. Vyse
PY  - 1991
DO  - 10.1139/z91-421
UR  - https://pubs.usgs.gov/publication/1013318
ID  - 1013318
ER  -