000 00310 a2200133 4500
080 _a631.19
_bB 355 H
245 1 _aHunger signs in crops
_cby F.E. Bear
260 _bAmerican Society of Agronomy
_c1949
650 _aHunger
650 _aCrops
100 1 _aBear, F.E.
_d
300 _a390 p.
901 _a178114
999 _c80016
_d80016