Deismireacht APA

Gwinn, R. P. (1973). 1974 Britannica yearbook of science and the future. Britain: Helen Hemingway Benton.

Trích dẫn kiểu Chicago

Gwinn, Robert P. 1974 Britannica Yearbook of Science and the Future. Britain: Helen Hemingway Benton, 1973.

Deismireacht MLA

Gwinn, Robert P. 1974 Britannica Yearbook of Science and the Future. Britain: Helen Hemingway Benton, 1973.

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