TY  - RPRT
TI  - Bioassay of estrogenicity and chemical analyses of estrogens in streams across the United States associated with livestock operations
AU  - David A. Alvarez
AU  - Nancy W. Shappell
AU  - L.O. Billey
AU  - Dietrich S. Bermudez
AU  - Vickie S. Wilson
AU  - Dana W. Kolpin
AU  - Stephanie D. Perkins
AU  - Nicola Evans
AU  - William T. Foreman
AU  - James L. Gray
AU  - J.M. Shipitalo
AU  - Michael T. Meyer
PY  - 2013
DO  - 10.1016/j.watres.2013.03.028
UR  - https://pubs.usgs.gov/publication/70048234
ID  - 70048234
ER  -