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by U.s. Department of Agriculture; Chambers, Roger
by Kellog, R. M.; Chambers, Roger
by Us Dept. of Agriculture; Chambers, Roger
by Wickson, Edward J.; Chambers, Roger
by Powell, F. E.; Chambers, Roger
by Agriculture, Us Dept. of; Chambers, Roger
by Smith, M.o.; Chambers, Roger
by Kinney, L. F.; Station, Rhode Island Agricultural Experiment; Agriculture, U.s Dept. of; et al.
by Beard, Daniel Carter; Chambers, Roger
by Beard, Lina; Beard, Adelia D.; Chambers, Roger