Não informado. (1966). Gastroenterology abstracts and citations. National Institute of Arthritis, Metabolism and Digestive Diseases.
Cita Chicago Style (17a ed.)Não informado. Gastroenterology Abstracts and Citations. Bethesda, Md: National Institute of Arthritis, Metabolism and Digestive Diseases, 1966.
Cita MLA (8a ed.)Não informado. Gastroenterology Abstracts and Citations. National Institute of Arthritis, Metabolism and Digestive Diseases, 1966.
Precaución: Estas citas no son 100% exactas.