APA (7e ed.) Bronvermelding

Não informado. (1970). American Family Physician/GP. American Academy of General Practice.

Chicago (17e ed.) Bronvermelding

Não informado. American Family Physician/GP. Kansas City, Kan: American Academy of General Practice, 1970.

MLA (8e ed.) Bronvermelding

Não informado. American Family Physician/GP. American Academy of General Practice, 1970.

Let op: Deze citaties zijn niet altijd 100% accuraat.