APA Citation

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

Chicago Style Citation

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

MLA Citation

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

Warning: These citations may not always be 100% accurate.