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Original Investigations of Cattle Diseases in Nebraska, 1886-1888
Frank Seaver Billings
Lawrence Bruner
University of Nebraska (Lincoln campus). Agricultural Experiment Station
出版
University of Nebraska, Agricultural Experiment Station of Nebraska
, 1889
URL
http://books.google.com.hk/books?id=kBAnAQAAMAAJ&hl=&source=gbs_api