National Research Council (U.S.). Space Studies Board, United States. National Aeronautics and Space Administration, & ebrary, Inc. (2006). An assessment of balance in NASA's science programs. National Academies Press.
芝加哥风格引文National Research Council (U.S.). Space Studies Board, United States. National Aeronautics and Space Administration, 与 Inc ebrary. An Assessment of Balance in NASA's Science Programs. Washington, DC: National Academies Press, 2006.
MLA引文National Research Council (U.S.). Space Studies Board, et al. An Assessment of Balance in NASA's Science Programs. National Academies Press, 2006.
警告：这些引文格式不一定是100％准确.