000 00296 am a2200121 a 4500
100 1 _a
_d
245 1 _aThirtieth annual report
260 _aWashington
_c1920
300 _a1-47 p.
942 _2udc
_cB
440 _aWashington Agricultural Experiment Station. Bulletin No. 158
901 _aS51563
999 _c109164
_d109164