000			00638nam a2200217Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _a634.967 _bKEE/I
100			_aKeen, F.P.
245			_aInsect enemies of western forests _cby F.P. Keen
260			_aWashington, D.C. : _bUnited States Government Printing Office , _c1952
300			_a254 p.
300			_efigures
490			_aUnited States department of agriculture, miscellaneous publications _a
504			_aIndex: p. 255-78.
653			_aEntomology
653			_aForest insects
653			_aForest pests
653			_aForestry
942			_cEN _2ddc
999			_c4793 _d4793