Cita APA (7a ed.)
Spier, F. (2015). Big history and the future of humanity (Second edition.). Wiley Blackwell.
Cita Chicago Style (17a ed.)
Spier, Fred. Big History and the Future of Humanity. Second edition. Chichester, [England]: Wiley Blackwell, 2015.
Cita MLA (9a ed.)
Spier, Fred. Big History and the Future of Humanity. Second edition. Wiley Blackwell, 2015.
Precaución: Estas citas no son 100% exactas.