Westlake, Duncan R. GEAC : a guide for librarians and systems managers / Duncan R. Westlake with contributions by Alison M. Hunter and Margaret Sheridan. - 2nd ed. - Aldershot, England : Ashgate, c1992. - xiv, 303 p. ISBN: 1857420004 LCCN: 93016111 Subjects--Topical Terms: GEAC (Computer system)Libraries--Automation.