National Research Council (U.S.), National Science Foundation (U.S.). Division of Science Resources Studies, Brown, P., & Henderson, P. (1998). Doctoral scientists and engineers in the United States: 1995 profile. National Science Foundation.
芝加哥风格引文National Research Council (U.S.), National Science Foundation (U.S.). Division of Science Resources Studies, Prudence Brown, 与 Peter Henderson. Doctoral Scientists and Engineers in the United States: 1995 Profile. Arlington, VA: National Science Foundation, 1998.
MLA引文National Research Council (U.S.), et al. Doctoral Scientists and Engineers in the United States: 1995 Profile. National Science Foundation, 1998.
警告：这些引文格式不一定是100％准确.