Study of academic instruction for disadvantaged students : what is taught, and how, to the children of poverty : interim report from a two-year investigation / prepared by Michael S. Knapp ... [et al. ; prepared ... under contract by SRI International ... and Policy Studies Associates ... contract no. LC88054001].
Imprint
[Washington, D.C.?] : U.S. Dept. of Education, Office of Planning, Budget & Evaluation, [1991]
