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Filling the gaps : an overview of data on education in grades K through 12

Bobbitt, Sharon A.
Washington DC : National Center for Education Statistics : For sale by the U.S. G.P.O., Supt. of Docs., [1992] 1992

Psychometric report for the NELS:88 base year through second follow-up

Rock, Donald A.
[Washington, D.C.] : U.S. Dept. of Education, Office of Educational Research and Improvement, [1995] 1995