TY  - RPRT
TI  - Estimating age of sea otters with cementum layers in the first premolar
AU  - James L. Bodkin
AU  - Jack A. Ames
AU  - Ronald J. Jameson
AU  - Ancel M. Johnson
AU  - Gary M. Matson
PY  - 1997
DO  - 10.2307/3802207
UR  - https://pubs.usgs.gov/publication/1012970
ID  - 1012970
ER  -