000 00319nam a2200121Ia 4500
008 221001s1994 xx 000 0 eng d
082 _a329.954792 PUR
100 _aDEB (D.L)
245 0 _aNatural resources management for sustainable agriculture and environment
260 _c1994
300 _a443
942 _2ddc
_cBK
999 _c48157
_d48157