Haugen, D. M., & Musser, S. (2007). Is global warming a threat? Thomson/Gale/Greenhaven Press.
芝加哥风格引文Haugen, David M., 与 Susan Musser. Is Global Warming a Threat? Detroit: Thomson/Gale/Greenhaven Press, 2007.
MLA引文Haugen, David M., 与 Susan Musser. Is Global Warming a Threat? Thomson/Gale/Greenhaven Press, 2007.
警告：这些引文格式不一定是100％准确.