Dyfyniad APA

Manuel, P. D., Walker-Smith, J. A., & Tomkins, A. (1986). Infections of the gastrointestinal tract. Churchill Livingstone.

Dyfyniad Arddull Chicago

Manuel, P. D., John A. Walker-Smith, and A. Tomkins. Infections of the Gastrointestinal Tract. Edinburgh: Churchill Livingstone, 1986.

Dyfyniad MLA

Manuel, P. D., et al. Infections of the Gastrointestinal Tract. Churchill Livingstone, 1986.

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