ebrary, Inc, & Chesley, A. T. (2009). Next generation of human space flight systems. Nova Science.
芝加哥风格引文ebrary, Inc, 与 Alfred T. Chesley. Next Generation of Human Space Flight Systems. New York: Nova Science, 2009.
MLA引文ebrary, Inc, 与 Alfred T. Chesley. Next Generation of Human Space Flight Systems. Nova Science, 2009.
警告：这些引文格式不一定是100％准确.