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Statistiche sulla pesca e zootecnia
(2003)
Australian dairy industry in focus
(1998)
Dairy cow testing throughout the world
Taussig, Stephan, (1935)
Technology Adoption and Product Differentiation: Market-Level Effects
An, Henry, (2009)
The Adoption and Disadoption of Recombinant Bovine Somatotropin in the U.S. Dairy Industry
An, Henry, (2008)