International library cooperation : 10th Anniversary Essen Symposium, 19 October-22 October 1987 : festschrift in honour of Prof. Dr. Günther Pflug to his 65th birthday /
Essen Symposium(10th :1987 :Essen, Germany)
Pflug, Günther.
Helal, A. H.(Ahmed H.)
Weiss, J. W.(Joachim W.)
Essen : Universitätsbibliothek Essen,
1988.
Includes bibliographies.
International librarianship
Library cooperation