000
002360000a22001090004500
245
_a
Soil erosion & conservation
100
_a
Morgan, R.P.C.
260
_a
Essex
_b
Longman
_c
1986
080
_a
631.4
_b
M6
041
_a
EN
942
_c
BK
999
_c
118255
_d
118255