TY  - BOOK
T1  - Report on the U.S. Geological Survey's evaluation program for standard reference samples distributed in April 1993T-123 (trace constituents), T-125 (trace constituents), M-126 (major constituents), N-38 (nutrients), N-39 (nutrients), P-20 (low ionic strength), and Hg-16 (mercury) /
DA  - 1993.
CY  - Golden, Colo. :
CY  - Denver, CO :
AU  - Long, H. Keith.
AU  - Farrar, Jerry W.
CN  - I 19.76:
PB  - U.S. Geological Survey ;
PB  - Books and Open-File Reports [distributor],
PP  - Golden, Colo. :
PP  - Denver, CO :
PY  - 1993.
N1  - Chiefly tables.
N1  - Shipping list no.: 94-0603-M.
ID  - 240766
KW  - Water quality
KW  - Laboratories
TI  - Report on the U.S. Geological Survey's evaluation program for standard reference samples distributed in April 1993T-123 (trace constituents), T-125 (trace constituents), M-126 (major constituents), N-38 (nutrients), N-39 (nutrients), P-20 (low ionic strength), and Hg-16 (mercury) /
ER  -