TY - RPRT TI - Guidelines for collection and field analysis of water-quality samples from streams in Texas AU - F.C. Wells AU - W.J. Gibbons AU - M.E. Dorsey PY - 1990 DO - 10.3133/ofr90127 UR - https://pubs.usgs.gov/publication/ofr90127 ID - ofr90127 ER -