TY - BOOK T1 - Results of the U.S. Geological Survey's analytical evaluation program for standard reference samplesT-147 (trace constituents), T-149 (trace constituents), M-142 (major constituents), N-53 (nutrient constituents), N-54 (nutrient constituents), P-28 (low ionic strength constituents) GW-1 (ground-water constituents), and Hg-24 (mercury) distributed in April 1997 / DA - 1997. CY - Lakewood, Colo. : CY - Denver, Colo. : AU - Farrar, Jerry W. CN - I 19.76: PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Branch of Information Services [distributor], PP - Lakewood, Colo. : PP - Denver, Colo. : PY - 1997. N1 - Shipping list no.: 99-0354-M. ID - 216477 KW - Laboratories TI - Results of the U.S. Geological Survey's analytical evaluation program for standard reference samplesT-147 (trace constituents), T-149 (trace constituents), M-142 (major constituents), N-53 (nutrient constituents), N-54 (nutrient constituents), P-28 (low ionic strength constituents) GW-1 (ground-water constituents), and Hg-24 (mercury) distributed in April 1997 / ER -