Dyfyniad APA

Scott, M. L. (1998). Dewey decimal classification, 21st edition: A study manual and number building guide. Libraries Unlimited.

Dyfyniad Arddull Chicago

Scott, Mona L. Dewey Decimal Classification, 21st Edition: A Study Manual and Number Building Guide. Englewood, Colo: Libraries Unlimited, 1998.

Dyfyniad MLA

Scott, Mona L. Dewey Decimal Classification, 21st Edition: A Study Manual and Number Building Guide. Libraries Unlimited, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.