APA (7th ed.) Citation

Colbert, S., Dahm, R., Dinello, P., & Silverman, A. (2007). I am America (and so can you!). Grand Central Publishing.

Chicago Style (17th ed.) Citation

Colbert, Stephen, Rich Dahm, Paul Dinello, and Allison Silverman. I Am America (and so Can You!). [New York]: Grand Central Publishing, 2007.

MLA (9th ed.) Citation

Colbert, Stephen, et al. I Am America (and so Can You!). Grand Central Publishing, 2007.