000 00397nam a2200133Ia 4500
008 151015s9999 xx 000 0 und d
020 _a9251036446
100 _aNorman, D. W. [et al.]
245 _aFarming systems approach to development and appropriate technology generation
260 _c1995
300 _axii 229p.
500 _aFAO farm system management series no- 10
942 _cFAO
_2udc
999 _c24406
_d24406