Cita APA

(1973). 1973 britannica yearbook of science and future.

Citación estilo Chicago

1973 Britannica Yearbook of Science and Future. Encyclopaedia Britanica Inc., London, 1973.

Cita MLA

1973 Britannica Yearbook of Science and Future. 1973.

Warning: These citations may not always be 100% accurate.