Perren, R. (1978). The meat trade in Britain, 1840-1914. Routledge and Kegan Paul.
Lua i Stíl Chicago (17ú heag.)Perren, Richard. The Meat Trade in Britain, 1840-1914. London [etc.]: Routledge and Kegan Paul, 1978.
Lua MLA (8ú heag.)Perren, Richard. The Meat Trade in Britain, 1840-1914. Routledge and Kegan Paul, 1978.
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