TY  - RPRT
TI  - Causes of reproductive failure in two family groups of wolves (Canis lupus)
AU  - J.M. Packard
AU  - U.S. Seal
AU  - L.D. Mech
AU  - E.D. Plotka
PY  - 1985
UR  - https://pubs.usgs.gov/publication/5222002
ID  - 5222002
ER  -