@misc{indiciae01fcdcf29c5e, title = {Biology as an integrated component of the U.S. Geological Survey's National Water-Quality Assessment Program}, author = {Michael R. Meador and Martin E. Gurtz}, year = {1994}, doi = {10.3133/ofr9483}, url = {https://pubs.usgs.gov/publication/ofr9483}, note = {Source identifier: ofr9483} }