Cita APA (7a ed.)

Christofferson, B. (2004). The Man from Clear Lake: Earth Day Founder Senator Gaylord Nelson. University of Wisconsin Press.

Cita Chicago Style (17a ed.)

Christofferson, Bill. The Man from Clear Lake: Earth Day Founder Senator Gaylord Nelson. Madison, Wis.: University of Wisconsin Press, 2004.

Cita MLA (8a ed.)

Christofferson, Bill. The Man from Clear Lake: Earth Day Founder Senator Gaylord Nelson. University of Wisconsin Press, 2004.