000 004270000a22001330004500
008 140223b1956 xxu||||| |||| 00| 0 eng d
041 _aENG
080 _aJ:5uN49 J6
082 _aJ:5uN49 J6
245 _aAdvances in agronomy, ed by Arthur Geoffrey Norman and Prepared Under the Auspices of the American Society of Agronomy, vol.8
260 _aAcademic
_bNew York
_c1956
650 _aCROP DEVELOPMENT
906 _aADVANCES
999 _c100127
_d100127