(2000). National Index of Public Effort to Fund Higher Education, 1930-96. U.S. Department of Education.
Chicago-čujuhus (17. p.)National Index of Public Effort to Fund Higher Education, 1930-96. U.S. Department of Education, 2000.
MLA-čujuhus (9. p.)National Index of Public Effort to Fund Higher Education, 1930-96. U.S. Department of Education, 2000.
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