TY  - RPRT
TI  - Mate preference in wild and domesticated (game-farm) mallards: II. Pairing success
AU  - K.M. Cheng
AU  - R.N. Shoffner
AU  - R.E. Phillips
AU  - F.B. Lee
PY  - 1979
UR  - https://pubs.usgs.gov/publication/1001512
ID  - 1001512
ER  -