APA (7th ed.) Citation

Riley, P. D. (2004). 100 things you should know about planet earth. Miles Kelly Publishing.

Chicago Style (17th ed.) Citation

Riley, Peter D. 100 Things You Should Know About Planet Earth. Bardifield, Essex: Miles Kelly Publishing, 2004.

MLA (9th ed.) Citation

Riley, Peter D. 100 Things You Should Know About Planet Earth. Miles Kelly Publishing, 2004.

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