TY  - BOOK
AU  - Hudson,Norman
TI  - Soil conservation
SN  - 0713405622
AV  - S623 .H92 1971
U1  - 631.4/5 
PY  - 1972///, c1971]
CY  - Ithaca, N.Y.
PB  - Cornell University Press
KW  - Soil conservation
KW  - Soil erosion
N1  - Includes bibliographies
ER  -