APA aipamena

Bell, D. (1967). Toward the year 2000: Work in progress. Boston: Beacon Press.

Chicago Style aipamena

Bell, Daniel. Toward the Year 2000: Work in Progress. Boston: Beacon Press, 1967.

MLA aipamena

Bell, Daniel. Toward the Year 2000: Work in Progress. Boston: Beacon Press, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.