APA aipamena

Silva, M. e. (1972). 1973 Britannica yearbooks of science and the future. Encyclopaedia Britannica.

Chicago Style aipamena

Silva, Michel ed. 1973 Britannica Yearbooks of Science and the Future. Chicago: Encyclopaedia Britannica, 1972.

MLA aipamena

Silva, Michel ed. 1973 Britannica Yearbooks of Science and the Future. Encyclopaedia Britannica, 1972.