000 00374nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aFood and Agriculture Organization of the United Nations
245 _aResponse of wheat to fertilizers
260 _aRome
_bFAO
_c1971
300 _a131 p.
440 _aNo. 12; FAO, Soils Bulletin
901 _a143368
942 _cB
_2udc
999 _c11265
_d11265