APA aipamena

Halpern, S. L. (1970). The medical clinics of North America.

Chicago Style aipamena

Halpern, Seymour Lionel. The Medical Clinics of North America. 1970.

MLA aipamena

Halpern, Seymour Lionel. The Medical Clinics of North America. 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.