APA (7e ed.) Bronvermelding

Não informado. (1970). Aging and Human Development. Greenwood Press.

Chicago (17e ed.) Bronvermelding

Não informado. Aging and Human Development. Westport, Conn: Greenwood Press, 1970.

MLA (8e ed.) Bronvermelding

Não informado. Aging and Human Development. Greenwood Press, 1970.

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