Hirsch, R., & Trento, J. J. (1973). The National Aeronautics and Space Administration. Praeger.
芝加哥风格引文Hirsch, Richard, 与 Joseph John Trento. The National Aeronautics and Space Administration. New York: Praeger, 1973.
MLA引文Hirsch, Richard, 与 Joseph John Trento. The National Aeronautics and Space Administration. Praeger, 1973.
警告：这些引文格式不一定是100％准确.