De Camp, L. S. (1961). The heroic age of American invention. Garden City, N.Y: Doubleday.
Chicago Style CitationDe Camp, L. Sprague. The Heroic Age of American Invention. Garden City, N.Y: Doubleday, 1961.
MLA CitationDe Camp, L. Sprague. The Heroic Age of American Invention. Garden City, N.Y: Doubleday, 1961.
Warning: These citations may not always be 100% accurate.