APA aipamena

Williams B K. (1996). Dewey decimal classification ED.21 vol.3. Online computer.

Chicago Style aipamena

Williams B K. Dewey Decimal Classification ED.21 Vol.3. New York: Online computer, 1996.

MLA aipamena

Williams B K. Dewey Decimal Classification ED.21 Vol.3. Online computer, 1996.