000 00313nam a2200121Ia 4500
008 151015s9999 xx 000 0 und d
020 _a9251025479
245 _aConsultaion on irrigation in Africa
260 _c1987
300 _a206 p.
500 _aFAO irrigation and drainage paper no- 42
942 _cFAO
_2udc
999 _c23892
_d23892