APA Alıntı

Britannica, E. (1981). Britannica year book of science and the future. U.S.A.

Chicago Stili Alıntı

Britannica, Encyclopaedia. Britannica Year Book of Science and the Future. Chicago: U.S.A, 1981.

MLA Alıntı

Britannica, Encyclopaedia. Britannica Year Book of Science and the Future. U.S.A, 1981.