APA aipamena

Davison, C. (1963). “Alka-seltzer” and Haematemesis.

Chicago Style aipamena

Davison, Clarke. “Alka-seltzer” and Haematemesis. 1963.

MLA aipamena

Davison, Clarke. “Alka-seltzer” and Haematemesis. 1963.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.