Cough C S. (1979). National library and information services: A handbook for planners. Butter worths.
Chicago Edition CitationCough C S. National Library and Information Services: A Handbook for Planners. London: Butter worths, 1979.
Cita MLACough C S. National Library and Information Services: A Handbook for Planners. Butter worths, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.