Anesthesiology. F. HoffmannLa Roche & Co. Limited Company.
Chicago Style (17th ed.) ZitazioaAnesthesiology. Switzerland: F. HoffmannLa Roche & Co. Limited Company.
MLA (9th ed.) ZitazioaAnesthesiology. F. HoffmannLa Roche & Co. Limited Company.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.