000 00349 a2200133 4500
080 _a631.8
_bF 686 S
245 1 _aStatistics of crop responses to fertilizers
260 _aRome
_bFood and Agriculture Organization
_c1966
650 _aFertilizer
700 _aFood and Agriculture Organization
100 _a
_d
300 _a112 p.
901 _a87349
999 _c45288
_d45288