APA

Clean Cities (Program: U.S.), . (2005). Clean cities now: official publication of Clean Cities and the Alternative Fuels Data Center. Golden, CO: Clean Cities and the Alternative Fuels Data Center.

Chicago

Clean Cities (Program: U.S.), . 2005. Clean cities now: official publication of Clean Cities and the Alternative Fuels Data Center. Golden, CO: Clean Cities and the Alternative Fuels Data Center.

Harvard

Clean Cities (Program: U.S.), . (2005). Clean cities now: official publication of Clean Cities and the Alternative Fuels Data Center. Golden, CO: Clean Cities and the Alternative Fuels Data Center.

MLA

Clean Cities (Program: U.S.), . Clean cities now: official publication of Clean Cities and the Alternative Fuels Data Center. Golden, CO: Clean Cities and the Alternative Fuels Data Center. 2005.