National Research Council (U.S.). Commission on Human Resources. Science, engineering, and humanities doctorates in the United States; profile. National Academy of Sciences.
Chicago Style (17th ed.) CitationNational Research Council (U.S.). Commission on Human Resources. Science, Engineering, and Humanities Doctorates in the United States; Profile. Washington: National Academy of Sciences.
MLA (9th ed.) CitationNational Research Council (U.S.). Commission on Human Resources. Science, Engineering, and Humanities Doctorates in the United States; Profile. National Academy of Sciences.
Warning: These citations may not always be 100% accurate.