Cough C. (1974). A user's guide to copyright national library and information services: A handbook for planners. Butter worths.
Chicago Edition CitationCough C. A User's Guide to Copyright National Library and Information Services: A Handbook for Planners. London: Butter worths, 1974.
Cita MLACough C. A User's Guide to Copyright National Library and Information Services: A Handbook for Planners. Butter worths, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.