Publicação
Anderson L. D. & Walker H. G. 1939 - Potato spraying in eastern Virginia in 1938. American Potato Journal. New Brunswick, N. J 16: 114-120.
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Anderson L. D. & Walker H. G. 1939 - Potato spraying in eastern Virginia in 1938. American Potato Journal. New Brunswick, N. J 16: 114-120.
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