APA (7th ed.) Citation

McKenna, E. P., & Han, H. (2015). Groundbreakers: How Obama's 2.2 million volunteers transformed campaigning in America. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

McKenna, Elizabeth Perle, and Hahrie Han. Groundbreakers: How Obama's 2.2 Million Volunteers Transformed Campaigning in America. New York: Oxford Univ. Press, 2015.

MLA (9th ed.) Citation

McKenna, Elizabeth Perle, and Hahrie Han. Groundbreakers: How Obama's 2.2 Million Volunteers Transformed Campaigning in America. Oxford Univ. Press, 2015.