Dyfyniad APA

Tizard, I. R. (1977). An introduction to veterinary immunology. Philadelphia: Saunders.

Dyfyniad Arddull Chicago

Tizard, Ian R. An Introduction to Veterinary Immunology. Philadelphia: Saunders, 1977.

Dyfyniad MLA

Tizard, Ian R. An Introduction to Veterinary Immunology. Philadelphia: Saunders, 1977.

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