000 00439 a2200157 4500
080 _a631.816
_bF 686 F
245 1 _aFertilizers and their use
_bA pocket guide extension officers
250 _a2nd edn. rev.
260 _aRome
_bF.A.O.
_c1970
650 _aFertilizers Use
650 _aExtension Officers
700 _aFood and Agriculture Organization of the United Nations, Rome
100 _a
_d
300 _a54 p.
901 _a106607
999 _c45523
_d45523