APA (7th ed.) Citation

Nigro, M., & Marra, J. (2014). Brain games. National Geographic.

Chicago Style (17th ed.) Citation

Nigro, Michael, and Joey Marra. Brain Games. District of Columbia: National Geographic, 2014.

MLA (9th ed.) Citation

Nigro, Michael, and Joey Marra. Brain Games. National Geographic, 2014.