000 00342nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a338.432
_bFAO
245 0 _aEnergy cropping versus food production : FAO expert consultation Rome,2-6 June 1980
260 _aRome
_bFAO
_c1981
490 _aFAO agricultural services bulletin 46
942 _cBK
999 _c40903
_d40903