Sourcebook of hydrologic and ecological features : water resource regions of the conterminous United States / Robert M. Cushman... [et al.]
Sourcebook of hydrologic and ecological features : water resource regions of the conterminous United States / Robert M. Cushman... [et al.] - - Ann Arbor Ann Arbor Science, 1980 - x,126 p. 23.5 cm - .
0-250-40355-20
Water resource development
Water quality bioassay
Water supply
551.48/.49 Sou