APA aipamena

(1990). The Merck Manual of geriatrics. Merck.

Chicago Style aipamena

The Merck Manual of Geriatrics. Washington: Merck, 1990.

MLA aipamena

The Merck Manual of Geriatrics. Merck, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.