Não informado. (2008). Journal of Swine Health and Production. American Association of Swine Veterinarians.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of Swine Health and Production. Perry, Iowa: American Association of Swine Veterinarians, 2008.
Citação MLA (8ª ed.)Não informado. Journal of Swine Health and Production. American Association of Swine Veterinarians, 2008.
警告：这些引文格式不一定是100％准确.