Deismireacht APA

De Camp, L. S. (1961). The heroic age of American invention. Garden City, N.Y: Doubleday.

Trích dẫn kiểu Chicago

De Camp, L. Sprague. The Heroic Age of American Invention. Garden City, N.Y: Doubleday, 1961.

Deismireacht MLA

De Camp, L. Sprague. The Heroic Age of American Invention. Garden City, N.Y: Doubleday, 1961.

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