Manual on consevation of soil and water
United States. Department of Agriculture
Manual on consevation of soil and water - New Delhi Oxford &IBH Publishing c1954 - iv,208p.:ill.; 22cm.
Soil conservation--Manuals
Water conservation--Manuals
631 / UNI
Manual on consevation of soil and water - New Delhi Oxford &IBH Publishing c1954 - iv,208p.:ill.; 22cm.
Soil conservation--Manuals
Water conservation--Manuals
631 / UNI