Cita APA (7a ed.)

(1985). Yearbook of science and the future 1986. Encyclopaedia Britannica.

Cita Chicago Style (17a ed.)

Yearbook of Science and the Future 1986. Chicago [etc.]: Encyclopaedia Britannica, 1985.

Cita MLA (9a ed.)

Yearbook of Science and the Future 1986. Encyclopaedia Britannica, 1985.

Precaución: Estas citas no son 100% exactas.