TY  - RPRT
TI  - Pollution: lowering levels of phosphorus, experimenting with feed, diets
AU  - H. G. Ketola
AU  - H. Westers
AU  - C. Pecor
AU  - W. Houghton
AU  - L. Wubbels
PY  - 1985
UR  - https://pubs.usgs.gov/publication/1014522
ID  - 1014522
ER  -