APA aipamena

Hywel, D. (1978). Cardiology. Butterworths.

Chicago Style aipamena

Hywel, Davies. Cardiology. Boston: Butterworths, 1978.

MLA aipamena

Hywel, Davies. Cardiology. Butterworths, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.