000 00305 am a2200121 a 4500
100 1 _aCook, F.C.
245 1 _aPickering sprays
260 _aWashington
_c1920
300 _a1-47 p.
942 _2udc
_cB
440 _aUnited States Department of Agriculture. Department Bulletin No. 866
901 _aS50740
999 _c107923
_d107923