00825cam a2200229 u 4500 hsl000648884 DGPO 20190831113905.0 cr cn||||||||| 090729s2009 xxu r f000 0 eng d GPO MvI 0455-R (online) ED 1.602:SO 2 ED 1.602:SO 2 Effectivess of reading and mathematics software products [electronic resource] : findings from two student cohorts. Washington, DC : U. S. Department of Education, Institute of Education Sciences, National Center for Education Evaluation and Regional Assistance, 2009. 1 v. : digital, PDF file "NCEE 2009-4041." "February 2009." CRDP Program Historic Shelflist record. BEV Fed Docs 286051 286051