Dyfyniad APA

Aspinall, R. J. (2002). Gastroenterology and liver disease. London: Mosby.

Dyfyniad Arddull Chicago

Aspinall, Richard J. Gastroenterology and Liver Disease. London: Mosby, 2002.

Dyfyniad MLA

Aspinall, Richard J. Gastroenterology and Liver Disease. London: Mosby, 2002.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.