Não informado. (1970). American Family Physician/GP. American Academy of General Practice.
Cita Chicago Style (17a ed.)Não informado. American Family Physician/GP. Kansas City, Kan: American Academy of General Practice, 1970.
Cita MLA (8a ed.)Não informado. American Family Physician/GP. American Academy of General Practice, 1970.
Precaución: Estas citas no son 100% exactas.