TY  - BOOK
AU  - United States. Department of Agriculture.
TI  - A manual on conservation of soil and water; hand book for professional agricultural workers
U1  - 631.459+631.6.02(02) K4 
PY  - 1969///
CY  - Calcutta
PB  - Oxford and IBH
KW  - Soil conservation,Water conservation,Agricultural labourers
ER  -