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Bulletin - Vermont Agricultural Experiment Station
Benjamin Franklin Lutman
George Plumer Burns
Joseph Lawrence Hills
Robert Mann Washburn
Vermont Agricultural Experiment Station
Arne Kristopher Peitersen
Charles Howland Jones
出版
Vermont Agricultural Experiment Station
, 1916
URL
http://books.google.com.hk/books?id=JjFRAQAAMAAJ&hl=&source=gbs_api