Aspinall, R. J. (2002). Gastroenterology and liver disease. London: Mosby.
Dyfyniad Arddull ChicagoAspinall, Richard J. Gastroenterology and Liver Disease. London: Mosby, 2002.
Dyfyniad MLAAspinall, Richard J. Gastroenterology and Liver Disease. London: Mosby, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.