Innovation for information : international contributions to librarianship : Festschrift in honour of Dr. Ahmed H. Helal /
Helal, A. H.(Ahmed H.)
Weiss, J. W.(Joachim W.)
Essen : Universitätsbibliothek Essen,
1992.
English, French, and German.
Includes bibliographical references.
Libraries
Comparative librarianship.