APA aipamena

ANSI. (1977). ANSI Z39.29-1977: American National. American National Standards Institute.

Chicago Style aipamena

ANSI. ANSI Z39.29-1977: American National. New York: American National Standards Institute, 1977.

MLA aipamena

ANSI. ANSI Z39.29-1977: American National. American National Standards Institute, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.