APA (7e ed.) Bronvermelding

Não informado. (1964). Soil and water. National Water and Soil Conservation Organization.

Chicago (17e ed.) Bronvermelding

Não informado. Soil and Water. Wellington: National Water and Soil Conservation Organization, 1964.

MLA (8e ed.) Bronvermelding

Não informado. Soil and Water. National Water and Soil Conservation Organization, 1964.

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