APA (7e ed.) Bronvermelding

Não informado. (1978). ISWA Journal. International Solid Wastes and Public Cleansing Association.

Chicago (17e ed.) Bronvermelding

Não informado. ISWA Journal. Zurich, Alemanha: International Solid Wastes and Public Cleansing Association, 1978.

MLA (8e ed.) Bronvermelding

Não informado. ISWA Journal. International Solid Wastes and Public Cleansing Association, 1978.

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