Style de citation APA

(1970). 1971 Britannica yearbooks of science and the future. Encyclopaedia Britannica.

Style de citation Chicago

1971 Britannica Yearbooks of Science and the Future. Chicago: Encyclopaedia Britannica, 1970.

Style de citation MLA

1971 Britannica Yearbooks of Science and the Future. Encyclopaedia Britannica, 1970.

Attention : ces citations peuvent ne pas être correctes à 100%.