Cita APA
Spier, F. (2015). Big history and the future of humanity (Second edition.). Wiley Blackwell.
Citación estilo Chicago
Spier, Fred. Big History and the Future of Humanity. Second edition. Chichester, [England]: Wiley Blackwell, 2015.
Cita MLA
Spier, Fred. Big History and the Future of Humanity. Second edition. Wiley Blackwell, 2015.
Warning: These citations may not always be 100% accurate.