000 00261nam a2200097Ia 4500
008 160212s9999 xx 000 0 und d
245 _aImproving food crop production on small farms in Africa
260 _c1987
_aRome
_bFAO
300 _ax 516p.
942 _2udc
_cFAO
999 _c29977
_d29977