000 00409nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a338.43.01:620.21
_bAGR
245 0 _aAgricultural raw materials: Competition with synthetic substitutes
260 _aRome
_bFAO of the United Nations
_c1984
490 _aFAO economic and social development paper no 48
650 _aAgricultural raw materials
942 _cBK
999 _c40002
_d40002