TY - RPRT TI - Water Resources Data, Colorado, Water Year 1991. Volume 2. Colorado River Basin AU - R.C. Ugland AU - B.J. Cochran AU - M.M. Hiner AU - E.A. Wilson AU - J.D. Bennett PY - 1992 DO - 10.3133/wdrco912 UR - https://pubs.usgs.gov/publication/wdrCO912 ID - wdrCO912 ER -