TY - RPRT TI - Role of biofilms in sorptive removal of steroidal hormones and 4-nonylphenol compounds from streams AU - Jeffrey H. Writer AU - Joseph N. Ryan AU - Larry B. Barber PY - 2011 DO - 10.1021/es2008038 UR - https://pubs.usgs.gov/publication/70038904 ID - 70038904 ER -