Não informado. (1970). American Family Physician/GP. American Academy of General Practice.
Chicagoスタイル(17版)引用形式Não informado. American Family Physician/GP. Kansas City, Kan: American Academy of General Practice, 1970.
MLA(8版)引用形式Não informado. American Family Physician/GP. American Academy of General Practice, 1970.
警告: この引用は必ずしも正確ではありません.