000
002600000a22001090004500
245
_a
Field engineering for agricultural development
100
_a
Hudson, N.W.
260
_a
Oxford
_b
Clarendon Press
_c
1975
080
_a
626.8
_b
H8
041
_a
EN
942
_c
BK
999
_c
63078
_d
63078