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Swine-plague and Hog-cholera
Frank Seaver Billings
其他書名
Results of Investigations Into this Matter by D.E. Salmon Published in the "Department of Agriculture Report of 1887"
出版State Journal Company, 1889
URLhttp://books.google.com.hk/books?id=QncsHQAACAAJ&hl=&source=gbs_api