National Research Council (U.S.), National Science Foundation (U.S.). Division of Science Resources Studies, ebrary, Inc, Brown, P., & Henderson, P. (1998). Doctoral scientists and engineers in the United States: 1995 profile. National Science Foundation.
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Čikaški stil citiranja (17. izdanje)
National Research Council (U.S.), National Science Foundation (U.S.). Division of Science Resources Studies, Inc ebrary, Prudence Brown, i Peter Henderson. Doctoral Scientists and Engineers in the United States: 1995 Profile. Arlington, VA: National Science Foundation, 1998.
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MLA način citiranja (9. izdanje)
National Research Council (U.S.), et al. Doctoral Scientists and Engineers in the United States: 1995 Profile. National Science Foundation, 1998.
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