Soil : the yearbook of agriculture, 1957.
- Washington : USDA , 1957
- xiii, 784p. : ill., fig. maps ; 23 cm.
- Yearbook of Agriculture V. 1957 .
Includes bibliographical references and index.
Soils
Soil fertility
Agriculture--United States
Land use
630 / US 2
Includes bibliographical references and index.
Soils
Soil fertility
Agriculture--United States
Land use
630 / US 2