APA ציטוט

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.

ציטוט MLA

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