National Science Foundation (U.S.). Science and Engineering Education and Human Resources Program & National Science Foundation (U.S.). Division of Science Resources Studies. Selected data on science and engineering doctorate awards. Science and Engineering Education and Human Resources Program, Division of Science Resources Studies, National Science Foundation.
Chicago Style (17th ed.) CitationNational Science Foundation (U.S.). Science and Engineering Education and Human Resources Program and National Science Foundation (U.S.). Division of Science Resources Studies. Selected Data on Science and Engineering Doctorate Awards. Washington, D.C.: Science and Engineering Education and Human Resources Program, Division of Science Resources Studies, National Science Foundation.
MLA (9th ed.) CitationNational Science Foundation (U.S.). Science and Engineering Education and Human Resources Program and National Science Foundation (U.S.). Division of Science Resources Studies. Selected Data on Science and Engineering Doctorate Awards. Science and Engineering Education and Human Resources Program, Division of Science Resources Studies, National Science Foundation.