improved method of chemical analysis for low levels of nitrogen in forest streams or in rainwater
By: Elly E. Holcombe, Duane G. Moore, and Richard L. Fredriksen.
Contributors: Moore, Duane G.; Fredriksen, Richard L.; Pacific Northwest Research Station (Portland, Or.)
Series: Research note PNW -- 449.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1986
Place of publication: Portland, Or
Language: eng
Number of pages: 12
Subjects: Water -- Nitrogen content.; Water -- Analysis.
Notes: Caption title.

"August 1986."