APA (7e ed.) Bronvermelding

Não informado. (2001). Resources, Conservation and Recycling. Editions Elsevier.

Chicago (17e ed.) Bronvermelding

Não informado. Resources, Conservation and Recycling. Amsterdam: Editions Elsevier, 2001.

MLA (8e ed.) Bronvermelding

Não informado. Resources, Conservation and Recycling. Editions Elsevier, 2001.

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