TY - BOOK AU - Blackwell, Cassandra D. CN - I 19.76: CY - Denver, Colo. : DA - 1990. ID - 241113 KW - Water resources development KW - Information storage and retrieval systems N1 - Cover title. N1 - Includes indexes. PB - U.S. Geological Survey, Books and Open-file Reports Section, PP - Denver, Colo. : PY - 1990. T1 - The water data sources directory of the National Water Data Exchange, Western Region TI - The water data sources directory of the National Water Data Exchange, Western Region VL - 90-599 ER -