APA (7e ed.) Bronvermelding

Não informado. (1977). Population Reports. Johns Hopkins University, Population Information Program.

Chicago (17e ed.) Bronvermelding

Não informado. Population Reports. Baltimore, Md: Johns Hopkins University, Population Information Program, 1977.

MLA (8e ed.) Bronvermelding

Não informado. Population Reports. Johns Hopkins University, Population Information Program, 1977.

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