Institute of Medicine (U.S.). Committee on the Future of Emergency Care in the United States Health System & ebrary, Inc. (2007). Emergency medical services at the crossroads. National Academies Press.
芝加哥风格引文Institute of Medicine (U.S.). Committee on the Future of Emergency Care in the United States Health System 与 Inc ebrary. Emergency Medical Services at the Crossroads. Washington, DC: National Academies Press, 2007.
MLA引文Institute of Medicine (U.S.). Committee on the Future of Emergency Care in the United States Health System 与 Inc ebrary. Emergency Medical Services at the Crossroads. National Academies Press, 2007.
警告：这些引文格式不一定是100％准确.