TY  - BOOK
AU  - Frederick R. Troeh
AU  -  J. Arthur Hobbs  Roy L. Donahue
TI  - Soil and water conservation
SN  - 0-13-830324-X
U1  - 631.45 
PY  - 1991///
CY  - Englewood Cliffs
PB  - Prentice Hall , Inc
N1  - Frederick R. Troeh; J. Arthur Hobbs & Roy L. Donahue: Soil and water conservation.  (2nd Edition)  Englewood Cliffs.  Prentice Hall , Inc, 1991. 0-13-830324-X--(631.45TRO)
ER  -