Libros
Final report of the Pennsylvania Chestnut Tree Blight Commission
Pennsylvania. Chestnut Tree Blight Commission.1914
Páginas: 121
Género: Chestnut blight
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The Conference Called by the Governor of Pennsylvania to Consider Ways and Means for Preventing the Spread of the Chestnut Tree Bark Disease
Pennsylvania Chestnut Blight Conference (1912 Harrisburg, Pa.)
1912
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The chestnut tree
Commission for the Investigation and Control of the Chestnut Tree Blight Disease in Pennsylvania
1913
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