APA aipamena

Encyclopedia Britanica. (1976). 1976 Yearbook of Science and the Future. Encycyclopaedia Britannica.

Chicago Style aipamena

Encyclopedia Britanica. 1976 Yearbook of Science and the Future. London: Encycyclopaedia Britannica, 1976.

MLA aipamena

Encyclopedia Britanica. 1976 Yearbook of Science and the Future. Encycyclopaedia Britannica, 1976.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.