Não informado. (1970). Chest. American College of Chest Physicians.
Cita Chicago Style (17a ed.)Não informado. Chest. Park Ridge, Ill: American College of Chest Physicians, 1970.
Cita MLA (8a ed.)Não informado. Chest. American College of Chest Physicians, 1970.
Precaución: Estas citas no son 100% exactas.