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Microfiche (3)

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Government Documents Microfiche (3)

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1999 (1)
1996 (2)

1.	Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : preparation procedure for aquatic biological ma[...] Hoffman, Gerald L.; Geological Survey (U.S.) Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : Branch of Information Services [distributor], 1996. I 19.76: 96-362 \| Detailed record - Similar records
2.	Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : in-bottle acid digestion of whole-water samples[...] Hoffman, Gerald L.; Fishman, Marvin J.; Garbarino, John R.; Geological Survey (U.S.) Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : Branch of Information Services [distributor], 1996. I 19.76: 96-225 \| Detailed record - Similar records
3.	Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory--comparison of a nitric acid in-bottle digestion procedure to[...] Garbarino, John R.; Hoffman, Gerald L.; Geological Survey (U.S.) Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 1999. I 19.76: 99-094 \| Detailed record - Similar records

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