International Academy of Proctology. (2004). American Journal of Proctology, Gastroenterology and Colon and Rectal Surgery. McMahon.
Citação do estilo Chicago (17ª ed.)International Academy of Proctology. American Journal of Proctology, Gastroenterology and Colon and Rectal Surgery. New York: McMahon, 2004.
Citação MLA (8ª ed.)International Academy of Proctology. American Journal of Proctology, Gastroenterology and Colon and Rectal Surgery. McMahon, 2004.
警告：这些引文格式不一定是100％准确.