000 00350 a2200133 4500
080 _a581.498:633
_bW 363 R
245 1 _aRoot development of field crops
_cby J.E. Weaver
260 _aNew York
_bMcGraw-Hill Book Company
_c1926
650 _aRoot Development
650 _aField Crops
100 1 _aWeaver, J.E.
_d
300 _a291 p.
901 _a73503
999 _c34603
_d34603