APA (7th ed.) Citation

K'Naan, Guy, S., & Gutierrez, R. (2012). When I get older: The story behind Wavin' flag. Tundra Books.

Chicago Style (17th ed.) Citation

K'Naan, Sol Guy, and Rudy Gutierrez. When I Get Older: The Story Behind Wavin' Flag. Toronto: Tundra Books, 2012.

MLA (9th ed.) Citation

K'Naan, et al. When I Get Older: The Story Behind Wavin' Flag. Tundra Books, 2012.