APA aipamena

Brown, M. M. (1969). Peroral Endoscopy.

Chicago Style aipamena

Brown, M. Meredith. Peroral Endoscopy. 1969.

MLA aipamena

Brown, M. Meredith. Peroral Endoscopy. 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.