APA (7th ed.) Citation

Musgrave, R. A. (2016). Look up. National Geographic Society.

Chicago Style (17th ed.) Citation

Musgrave, Ruth A. Look Up. Washington: National Geographic Society, 2016.

MLA (9th ed.) Citation

Musgrave, Ruth A. Look Up. National Geographic Society, 2016.

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