000 00308nam a2200133Ia 4500
008 160316s1955 xxu||||| |||| 00| 0 eng d
020 _a
100 _aG. H. Ahlgren
245 _aAdvance In Agronomy
250 _a1st
260 _aNEW YORK
_bACADEMIC PREES, INC, PUB.
_c1955
300 _a431
700 _a
_a
999 _c34479
_d34479