APA (7e ed.) Bronvermelding

Paul Guinness; Brenda Walpole. (2012). Environmental Systems and Societies for the IB Diploma. CAMBRIDGE UNIVERSITY PRESS.

Chicago (17e ed.) Bronvermelding

Paul Guinness; Brenda Walpole. Environmental Systems and Societies for the IB Diploma. CAMBRIDGE UNIVERSITY PRESS, 2012.

MLA (9e ed.) Bronvermelding

Paul Guinness; Brenda Walpole. Environmental Systems and Societies for the IB Diploma. CAMBRIDGE UNIVERSITY PRESS, 2012.

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