000 00274 a2200121 4500
080 _a632.951
_bR 593 S
245 1 _aSystemic insecticides
_cby W.E. Ripper
260 _aParis
_c1952
650 _aInsecticides
100 1 _aRipper, W.E.
_d
300 _a56 p.
901 _a38864
999 _c46744
_d46744