APA (7th ed.) Citation

Riley, P., & Carpenter, C. (2009). 100 things you should know about planet earth. Miles Kelly.

Chicago Style (17th ed.) Citation

Riley, Peter, and Clive Carpenter. 100 Things You Should Know About Planet Earth. England: Miles Kelly, 2009.

MLA (8th ed.) Citation

Riley, Peter, and Clive Carpenter. 100 Things You Should Know About Planet Earth. Miles Kelly, 2009.

Warning: These citations may not always be 100% accurate.