Não informado. (1946). American Psychologist. American Psychological Association.
Chicago (17e ed.) BronvermeldingNão informado. American Psychologist. Washington: American Psychological Association, 1946.
MLA (8e ed.) BronvermeldingNão informado. American Psychologist. American Psychological Association, 1946.
Let op: Deze citaties zijn niet altijd 100% accuraat.