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piedmontese.org
Peterson, Ralph R. (Winter 2012). "Building Better Beef"(PDF). Your Piedmontese. 12 (1): 10. Archived from the original(PDF) on December 23, 2014. Retrieved December 22, 2014.
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web.archive.org
Department of Animal Science; Oklahoma State University (1994–2005). "Piedmontese". Breeds of Livestock. Oklahoma State University Board of Regents. Archived from the original on June 17, 2013. Retrieved December 24, 2014.
Peterson, Ralph R. (Winter 2012). "Building Better Beef"(PDF). Your Piedmontese. 12 (1): 10. Archived from the original(PDF) on December 23, 2014. Retrieved December 22, 2014.