Petersen, R. J., & Davis, G. C. Education directory, colleges and universities, 1979-80. National center for Education Statistics.
Chicago-viite (17. p.)Petersen, Richard J., ja Geneva C. Davis. Education Directory, Colleges and Universities, 1979-80. Washington, D. C: National center for Education Statistics.
MLA-viite (9. p.)Petersen, Richard J., ja Geneva C. Davis. Education Directory, Colleges and Universities, 1979-80. National center for Education Statistics.
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