APA (7e ed.) Bronvermelding

Não informado. (1970). Environmental quality. Council on Environmental Quality, Executive Office of the President.

Chicago (17e ed.) Bronvermelding

Não informado. Environmental Quality. Washington: Council on Environmental Quality, Executive Office of the President, 1970.

MLA (8e ed.) Bronvermelding

Não informado. Environmental Quality. Council on Environmental Quality, Executive Office of the President, 1970.

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