APA aipamena

(1970). Britannica book of the year 1970. Chicago: William Benton.

Chicago Style aipamena

Britannica Book of the Year 1970. Chicago: William Benton, 1970.

MLA aipamena

Britannica Book of the Year 1970. Chicago: William Benton, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.