International loan services and union catalogues.. / Edited by Valentin Wehefritz - Frankfurt : Vittorio Klostermann, 1974 - 258 p. : 24 cm - Zeitschrift für Bibliothekswesen und Bibliographie. Sonderheft. 17 .
A manual published by the Committee on Union Catalogues and International Loans of the International Federation of Library Associations
PRÉSTAMO INTERBIBLIOTECARIO COOPERACIÓN ENTRE BIBLIOTECAS CATÁLOGOS COLECTIVOS