(1972). Encyclopaedia Britannica year book of science and the future. Encyclopaedia Britanica, Inc..
シカゴスタイル引用形Encyclopaedia Britannica Year Book of Science and the Future. Chicago: Encyclopaedia Britanica, Inc., 1972.
MLA引用形式Encyclopaedia Britannica Year Book of Science and the Future. Encyclopaedia Britanica, Inc., 1972.
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