000 00308 am a2200121 a 4500
245 1 _aOrchard spray calendar
260 _aU.S.A.
_c1912
300 _a1-12 p.
100 1 _aRichards, M.W.
942 _2udc
_cB
440 _aOrchard Purdue Agricultural Experimental Station. Circular No. 34
901 _aS47632
999 _c103560
_d103560