Soil.
Contributors: United States. Dept. of Agriculture.
Series: Yearbook of agriculture -- 1957
Publisher: U.S. Dept. of Agriculture
Published: 1957
Place of publication: Washington, D.C
Language: eng
Number of pages: 784
Subjects: Agriculture -- United States.; Soil management.; Soil science.
Notes: Also issued as House Document no. 30, 85th Congress, 1st Session.

Includes bibliographical references and index.