Dyfyniad APA

Dewey, M. (2003). Dewey decimal classification and relative index. Dublin, Ohio: OCLC Online Computer Library Center.

Dyfyniad Arddull Chicago

Dewey, Melvil. Dewey Decimal Classification and Relative Index. Dublin, Ohio: OCLC Online Computer Library Center, 2003.

Dyfyniad MLA

Dewey, Melvil. Dewey Decimal Classification and Relative Index. Dublin, Ohio: OCLC Online Computer Library Center, 2003.

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