Não informado. (1984). Pigs: An international magazine on pig keeping. Misset International.
Lua i Stíl Chicago (17ú heag.)Não informado. Pigs: An International Magazine on Pig Keeping. Doetinchen, Holanda: Misset International, 1984.
Lua MLA (8ú heag.)Não informado. Pigs: An International Magazine on Pig Keeping. Misset International, 1984.
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