000 00459nam a2200157Ia 4500
008 180710s9999 xx 000 0 und d
020 _a73825
082 _a631.8
_bFER
245 _aFERTILIZERS and their use: a pocket guide for extension officers
250 _a2nd ed., r
260 _aRome
_bFAO
_c1976
300 _aev. x, 54 p.-
440 _aFAO Land and water development series; no 4
650 _aFertilizers
942 _cS
999 _c63768
_d63768