Spiro, H. M. (1970). Clinical gastroenterology. Macmillan Company.
Lua i Stíl Chicago (17ú heag.)Spiro, Howard M. Clinical Gastroenterology. Estados Unidos: Macmillan Company, 1970.
Lua MLA (9ú heag.)Spiro, Howard M. Clinical Gastroenterology. Macmillan Company, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.