000 00282 a2200109 4500
008 190119b xxu||||| |||| 00| 0
100 _a Glenn C. Klingman
245 _aWeed control as a science
_c Glenn C. Klingman
260 _b Johan Wiley
_c1961
300 _a168p
942 _2ddc
_cBK
999 _c7885
_d7885