Dyfyniad APA

McCulloch, J. A., & Macnab, I. (1983). Sciatica and chymopapain. Williams & Wilkins.

Dyfyniad Arddull Chicago

McCulloch, John A., and Ian Macnab. Sciatica and Chymopapain. Baltimore, MD: Williams & Wilkins, 1983.

Dyfyniad MLA

McCulloch, John A., and Ian Macnab. Sciatica and Chymopapain. Williams & Wilkins, 1983.

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