Selection and Use of Indicators for Monitoring and Evaluation. - Luxembourg: Office for Official Publ. of the European Communities, 1999. - 245 s. : il. ; 21 cm. - Evaluating Socio-Economic Programmes Vol. 2 (MEANS Collection. European Commission) . bibliogr. ISBN: 9282866262 Uniwersalna Klasyfikacja Dziesiętna: 339.923:33