Distribution and activity of azotobacter in the range and cultivated soils of Arizona /
by W.P. Martin.

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Main Author: Martin, W. P. (William Paxman), 1912-
Language(s): English
Published: Tucson, Ariz. : University of Arizona, 1940.
Subjects: Soil microbiology > Soil microbiology / Arizona.
Azotobacter
Note: Cover title.
Physical Description: p. 335-369 : ill., 1 map ; 23 cm.
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Full view no.83(1940)	University of Illinois at Urbana-Champaign

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