Bluetongue : a threat to U.S. exports

Chicago citation style
Bluetongue : a threat to U.S. exports. [1981]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007419208. (Accessed September 21, 2018.)
APA citation style
([1981]) Bluetongue : a threat to U.S. exports. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007419208
MLA citation style
Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007419208>.
Note: These citations are programmatically generated and may be incomplete.