APA (7th ed.) Zitazioa
ebrary, Inc, & Spector, S. L. (1999). Anticholinergic agents in the upper and lower airways. Dekker.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Sheldon L. Spector. Anticholinergic Agents in the Upper and Lower Airways. New York: Dekker, 1999.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Sheldon L. Spector. Anticholinergic Agents in the Upper and Lower Airways. Dekker, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.