APA (7th ed.) Citation

Casper, J. K. (2009). Global warming trends: Ecological footprints. Facts on File.

Chicago Style (17th ed.) Citation

Casper, Julie Kerr. Global Warming Trends: Ecological Footprints. New York, NY: Facts on File, 2009.

MLA (9th ed.) Citation

Casper, Julie Kerr. Global Warming Trends: Ecological Footprints. Facts on File, 2009.

Warning: These citations may not always be 100% accurate.