TY  - RPRT
TI  - Changes in the visual pigments of trout
AU  - D.M. Allen
AU  - W.N. McFarland
AU  - F.W. Munz
AU  - H. A. Poston
PY  - 1973
DO  - 10.1139/z73-137
UR  - https://pubs.usgs.gov/publication/1013582
ID  - 1013582
ER  -