TY  - RPRT
TI  - Evaluation of a formula that categorizes female gray wolf breeding status by nipple size
AU  - Shannon M. Barber-Meyer
AU  - L. David Mech
PY  - 2015
DO  - 10.1656/045.022.0402
UR  - https://pubs.usgs.gov/publication/70159928
ID  - 70159928
ER  -