APA ציטוט

(1989). Dewey decimal classification and relative index / devised by Melvil Dewey.

Chicago Style (17th ed.) Citation

Dewey Decimal Classification and Relative Index / Devised by Melvil Dewey. 1989.

ציטוט MLA

Dewey Decimal Classification and Relative Index / Devised by Melvil Dewey. 1989.