APA (7e ed.) Bronvermelding

Watts, R. G. (2007). Global warming and the future of the earth. Morgan & Claypool Publishers.

Chicago (17e ed.) Bronvermelding

Watts, Robert G. Global Warming and the Future of the Earth. San Rafael, Calif: Morgan & Claypool Publishers, 2007.

MLA (8e ed.) Bronvermelding

Watts, Robert G. Global Warming and the Future of the Earth. Morgan & Claypool Publishers, 2007.