000 00391 a2200121 4500
020 _a013830324X
082 _a333.72 TRO
100 _aTroeh, Frederick R.
245 _aSoil and Water Conservation
_cFrederick R. Troeh, J. Arthur, Roy L. Donahue
250 _a2nd ed.
260 _aNew Jersey :
_bPrentice Hall Career and Technology
_c1991
300 _axiii,530p. :
_bill ., pics., ;
_c25 cm
650 _aSoil Conservation
999 _c301
_d301