000 00320nam a2200133Ia 4500
008 160316s1976 xxu||||| |||| 00| 0 eng d
020 _a
100 _aM H Arnold
245 _aAgricultural Research For Development
250 _a1
260 _aLONDON
_bCAMBRIDGE UNIVERSITY PRESS
_c1976
300 _a351
700 _a
_a
999 _c25242
_d25242