000 00402 a2200133 4500
080 _a631.8:633
_bW 572 C
245 1 _aCrop production levels and fertilizer use
_cby M.S. Williams and J.W. Couston
260 _aRome
_bFood and Agricultural Organization
_c1962
650 _aCrop Production
650 _aFertilizer Use
100 1 _aWilliams, M.S., Couston, J.W.
_d
300 _a48 p.
901 _a178162
999 _c82351
_d82351