Snyder, Thomas D. Digest of education statistics 1995/ by Thomas D. Snyder; Charlene M. Hoffman. - Washington, D.C. : Department of Education, 1995. - vii, 515 p.; 28 cm. retrs., fot. ISBN: 0160483794 No. de Clasificación Universal Decimal: OC 31:37 (73)=20 "1995" SNY