APA (7th ed.) Citation

Du Boulay, G. H. (1965). Principles of X-ray diagnosis of the skull. Butterworths.

Chicago Style (17th ed.) Citation

Du Boulay, George H. Principles of X-ray Diagnosis of the Skull. London: Butterworths, 1965.

MLA (9th ed.) Citation

Du Boulay, George H. Principles of X-ray Diagnosis of the Skull. Butterworths, 1965.