APA (7e ed.) Bronvermelding

Perkin, G. W. (1968). Population and family planning in the Philippines. Ford Foundation.

Chicago (17e ed.) Bronvermelding

Perkin, Gordon W. Population and Family Planning in the Philippines. Bangkok: Ford Foundation, 1968.

MLA (9e ed.) Bronvermelding

Perkin, Gordon W. Population and Family Planning in the Philippines. Ford Foundation, 1968.

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