Britannica, E. (1972). Britannica year book of science and the future. U.S.A.
シカゴスタイル引用形Britannica, Encyclopaedia. Britannica Year Book of Science and the Future. Chicago: U.S.A, 1972.
MLA引用形式Britannica, Encyclopaedia. Britannica Year Book of Science and the Future. U.S.A, 1972.
警告: この引用は必ずしも正確ではありません.