TY  - BOOK
ED  - United States.
TI  - Soil: the yearbook of agriculture, 1957
T2  - Yearbook of Agriculture
U1  - 630 
PY  - 1957///
CY  - Washington
PB  - USDA
KW  - Soils
KW  - Soil fertility
KW  - Agriculture
KW  - United States
KW  - Land use
N1  - Includes bibliographical references and index
ER  -