APA (7th ed.) Citation

Dewey, Kyrios, & Fox. (2020). Dewey Decimal Classification: Relative Index (2020 ed.). OCLC.

Chicago Style (17th ed.) Citation

Dewey, Kyrios, and Fox. Dewey Decimal Classification: Relative Index. 2020 ed. Dublin, USA: OCLC, 2020.

MLA (8th ed.) Citation

Dewey, et al. Dewey Decimal Classification: Relative Index. 2020 ed. OCLC, 2020.