APA (7th ed.) Citation

Degnan-Veness, C., Potter, J., & Hopkins, A. (2011). Barack Obama. Pearson Education, in association with Penguin Books.

Chicago Style (17th ed.) Citation

Degnan-Veness, Coleen, Jocelyn Potter, and Andy Hopkins. Barack Obama. Harlow, Essex: Pearson Education, in association with Penguin Books, 2011.

MLA (9th ed.) Citation

Degnan-Veness, Coleen, et al. Barack Obama. Pearson Education, in association with Penguin Books, 2011.