Sewage sludge for soil improvement
By: by M.S. Anderson.
Series: Circular / United States Department of Agriculture -- no. 972; Circular (United States. Dept. of Agriculture) -- no. 972.
Publisher: U.S. Dept. of Agriculture
Published: 1955
Place of publication: Washington, D.C
Language: eng
Number of pages: 27
Subjects: Sewage as fertilizer
Notes: Cover title.

Bibliography: p. 25-27.