Needs-Based resources allocation in education : Via formula funding of schools/ Edited by Kenneth N. Ross; Rosalind Levacic. - Paris : UNESCO; IIEP, 1999. - xi, 257 p. ISBN: 9280311832 (Hardback edition) 9280311719 No. de Clasificación Universal Decimal: 37.014.543 (100) =20 ASI.