Harries, J. T. (1977). Essentials of paediatric gastroenterology. Churchill Livingstone.
Lua i Stíl Chicago (17ú heag.)Harries, J. T. Essentials of Paediatric Gastroenterology. New York: Churchill Livingstone, 1977.
Lua MLA (9ú heag.)Harries, J. T. Essentials of Paediatric Gastroenterology. Churchill Livingstone, 1977.
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