Impact of new information technology on international library cooperation : Essen Symposium, 8 September-11 September 1986 /
Essen Symposium(9th :1986 :Essen, Germany)
Barnholdt, B.(Bent),1929-
Helal, A. H.(Ahmed H.)
Weiss, J. W.(Joachim W.)
Universitätsbibliothek Essen.
Essen : Universitätsbibliothek Essen,
1987.
At head of title: Universitätsbibliothek Essen = Essen University Library.