000 00362 a2200133 4500
080 _a632.5
_bA 285 P
245 1 _aPrinciples of weed control, Ahlgren, G.H.
_cby G.H. Ahlgren, et. al.
260 _aNew York
_c1951
650 _aWeed Control
100 1 _aAhlgren, G.H.
300 _a368 p.
040 _aIARI, New Delhi
901 _a120927
999 _c83160
_d83160