APA aipamena

World Book, I. Medical update: Medical update. Chicago: World Book-Childcraft International.

Chicago Style aipamena

World Book, Inc. Medical Update: Medical Update. Chicago: World Book-Childcraft International.

MLA aipamena

World Book, Inc. Medical Update: Medical Update. Chicago: World Book-Childcraft International.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.