Cita APA

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

Chicago Edition Citation

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

Cita MLA

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