TY  - BOOK
AU  - Troeh,Frederick R.
AU  - Hobbs,J.Arthur
AU  - Donahue,Roy Luther
TI  - Soil and water conservation for productivity and environmental prote ction / 
SN  - 0138221553
U1  - 631.45   22
PY  - 1980///
CY  - Englewood Cliffs, N.J. : 
PB  - Prentice-Hall, 
KW  - Soil conservation
KW  - Water conservation
KW  - Soil erosion
N1  -  Includes bibliographies and index
ER  -