APA (7e ed.) Bronvermelding

European Ecological Symposium (2nd : 1980 : Berlin & Bornkamm, R. (1982). Urban ecology: The second European Ecological Syposium, Berlin, 8-12 September 1980. Blackwell Scientific Pub.

Chicago (17e ed.) Bronvermelding

European Ecological Symposium (2nd : 1980 : Berlin en R. Bornkamm. Urban Ecology: The Second European Ecological Syposium, Berlin, 8-12 September 1980. Oxford: Blackwell Scientific Pub, 1982.

MLA (9e ed.) Bronvermelding

European Ecological Symposium (2nd : 1980 : Berlin en R. Bornkamm. Urban Ecology: The Second European Ecological Syposium, Berlin, 8-12 September 1980. Blackwell Scientific Pub, 1982.