Orchard spraying experiments in 1912
Morse, W.J., Yeaton, G.A.
Orchard spraying experiments in 1912 - Orono 1913 - 57-72 p. - Orchard Maine Agricultural Experiment Station. Bulletin No. 212 .
Orchard spraying experiments in 1912 - Orono 1913 - 57-72 p. - Orchard Maine Agricultural Experiment Station. Bulletin No. 212 .