Yarwood & Evans 1999, p. 80. Yarwood, Richard; Evans, Nick (1999). "The Changing Geography of Rare Livestock Breeds in Britain". Geography. 84 (1): 80–87. JSTOR40573249.
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Yarwood & Evans 1999, p. 81. Yarwood, Richard; Evans, Nick (1999). "The Changing Geography of Rare Livestock Breeds in Britain". Geography. 84 (1): 80–87. JSTOR40573249.
Yarwood & Evans 1999, p. 83. Yarwood, Richard; Evans, Nick (1999). "The Changing Geography of Rare Livestock Breeds in Britain". Geography. 84 (1): 80–87. JSTOR40573249.