(2006). User's Guide to Computing High School Graduation Rates, Volume 2: Technical Evaluation of Proxy Graduation Indicators. U.S. Department of Education.
Chicago-čujuhus (17. p.)User's Guide to Computing High School Graduation Rates, Volume 2: Technical Evaluation of Proxy Graduation Indicators. U.S. Department of Education, 2006.
MLA-čujuhus (9. p.)User's Guide to Computing High School Graduation Rates, Volume 2: Technical Evaluation of Proxy Graduation Indicators. U.S. Department of Education, 2006.
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