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Birds that Eat the Cotton Boll Weevil
Arthur Holmes Howell
其他書名
A Report of Progress
出版U.S. Department of Agriculture, 1906
URLhttp://books.google.com.hk/books?id=YissO4dmLqQC&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN
註釋Of observations in 1905. pp. 16.