Vista normal Vista MARC Vista ISBD

Lancaster, Frederick Wilfrid, 1933-

Guidelines for the evaluation of information systems and services / prepared for UNESCO contract by F.W. Lancaster - [París] : UNESCO, 1977 - iii, 178 p.

Fotocopia Monografía

Subjects--Index Terms: Servicios de Información - Evaluación

LC Class. No.: Z674.4/L35