Brown, H. (1954). The Challenge of Man's Future: An Inquiry Concerning the Condition of Man during the Years that Lie Ahead. N.Y.: Viking Press.
Trích dẫn kiểu ChicagoBrown, Harrison. The Challenge of Man's Future: An Inquiry Concerning the Condition of Man During the Years That Lie Ahead. N.Y.: Viking Press, 1954.
Deismireacht MLABrown, Harrison. The Challenge of Man's Future: An Inquiry Concerning the Condition of Man During the Years That Lie Ahead. N.Y.: Viking Press, 1954.
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