Scott, M. L. (2004). Dewey decimal classification 21st edition: A study manual and number building guide. Libraries Unlimited.
Chicago Edition CitationScott, Mona L. Dewey Decimal Classification 21st Edition: A Study Manual and Number Building Guide. Colorado: Libraries Unlimited, 2004.
Cita MLAScott, Mona L. Dewey Decimal Classification 21st Edition: A Study Manual and Number Building Guide. Libraries Unlimited, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.