APA Edition Citation

Dewey ,Melvil. (1996). Dewey decimal classification ED.21 vol.4. Online computer.

Chicago Edition Citation

Dewey ,Melvil. Dewey Decimal Classification ED.21 Vol.4. Online computer, 1996.

MLA Edition Citation

Dewey ,Melvil. Dewey Decimal Classification ED.21 Vol.4. Online computer, 1996.

Warning: These citations may not always be 100% accurate.