APA (7th ed.) Citation

Gerritsen, T. (2010). Gravity. Reader's Digest.

Chicago Style (17th ed.) Citation

Gerritsen, Tess. Gravity. NSW: Reader's Digest, 2010.

MLA (9th ed.) Citation

Gerritsen, Tess. Gravity. Reader's Digest, 2010.

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