American Hospital Association. (1972). Emergency services: The hospital emergency department in an emergency care system.
Chicago Style aipamenaAmerican Hospital Association. Emergency Services: The Hospital Emergency Department in an Emergency Care System. Chicago, 1972.
MLA aipamenaAmerican Hospital Association. Emergency Services: The Hospital Emergency Department in an Emergency Care System. 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.