APA aipamena

(1969). Britannica book of the year 1969. Chicago: William Benton.

Chicago Style aipamena

Britannica Book of the Year 1969. Chicago: William Benton, 1969.

MLA aipamena

Britannica Book of the Year 1969. Chicago: William Benton, 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.