value of organic matter
By: by E.F. Torgerson.
Contributors: Oregon Agricultural College. Extension Service.
Series: Circular -- no. 139.; Circular (Oregon Agricultural College. Extension Service) -- 139.
Publisher: Oregon Agricultural College, Extension Service
Published: 1919
Place of publication: Corvallis, OR
Language: eng
Subjects: Soils -- Organic compound content.
Notes: Caption title.

"March, 1919."