APA aipamena

(1970). Newspaper press directory 1970. London: Benn Brothers.

Chicago Style aipamena

Newspaper Press Directory 1970. London: Benn Brothers, 1970.

MLA aipamena

Newspaper Press Directory 1970. London: Benn Brothers, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.