Não informado. (1894). Circular. U.S. Department of Agriculture, Bureau of Animal Industry.
Chicago-viite (17. p.)Não informado. Circular. Washington: U.S. Department of Agriculture, Bureau of Animal Industry, 1894.
MLA-viite (8. p.)Não informado. Circular. U.S. Department of Agriculture, Bureau of Animal Industry, 1894.
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