APA (7e ed.) Bronvermelding

Não informado. (1981). BioCycle: Journal of waste recycling. JG Press.

Chicago (17e ed.) Bronvermelding

Não informado. BioCycle: Journal of Waste Recycling. Emmaus, Pa: JG Press, 1981.

MLA (8e ed.) Bronvermelding

Não informado. BioCycle: Journal of Waste Recycling. JG Press, 1981.

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