A data base of nitrate in ground-water samples from the conterminous United States
By: by Kenneth Lanfear
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey open-file report -- 92-652
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey; Books and Open-File Reports Section, distributor]
Published: 1992
Place of publication: Reston, Va; Denver, CO
Language: eng
Format: Microform
Subjects: Groundwater -- Nitrogen content -- United States -- Databases; Water -- Nitrogen content -- United States -- Databases
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 93-1136-M

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1993?] 1 microfiche : negative