Wood, R. J. The sheep breeder's view of heredity (1723 - 1843): Roger J. Wood. Conference A Cultural History of Heredity II : 18th and 19th centuries.(2003).
Lua i Stíl Chicago (17ú heag.)Wood, Roger J. "The Sheep Breeder's View of Heredity (1723 - 1843): Roger J. Wood." Conference A Cultural History of Heredity II : 18th and 19th Centuries.(2003) .
Lua MLA (8ú heag.)Wood, Roger J. "The Sheep Breeder's View of Heredity (1723 - 1843): Roger J. Wood." Conference A Cultural History of Heredity II : 18th and 19th Centuries.(2003), .
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