APA (7e ed.) Bronvermelding
Spier, F. (2015). Big history and the future of humanity (Second edition.). Wiley Blackwell.
Chicago (17e ed.) Bronvermelding
Spier, Fred. Big History and the Future of Humanity. Second edition. Chichester, [England]: Wiley Blackwell, 2015.
MLA (9e ed.) Bronvermelding
Spier, Fred. Big History and the Future of Humanity. Second edition. Wiley Blackwell, 2015.
Let op: Deze citaties zijn niet altijd 100% accuraat.