American Lung Association. (1994). American Journal of Respiratory and Critical Care Medicine. American Thoracic Society.
Chicago-referens (17:e uppl.)American Lung Association. American Journal of Respiratory and Critical Care Medicine. New York: American Thoracic Society, 1994.
MLA-referens (8:e uppl.)American Lung Association. American Journal of Respiratory and Critical Care Medicine. American Thoracic Society, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.