TY - BOOK AU - Erdmann, David E. CN - I 19.76: CY - Denver, Colo. : DA - 1991. ID - 200095 KW - Water quality management KW - Water quality monitoring stations KW - Water quality N1 - Distributed to depository libraries in microfiche. N1 - Shipping list no.: 92-2481-M. PB - U.S. Geological Survey : PB - Books and Open-File Reports Section [distributor], PP - Denver, Colo. : PY - 1991. T1 - Quality assurance requirements for water-quality laboratories providing analytical survices for the Water Resources Division of the U.S. Geological Survey TI - Quality assurance requirements for water-quality laboratories providing analytical survices for the Water Resources Division of the U.S. Geological Survey ER -