APA (7th ed.) Citation

Hart, I. B. (1949). James Watt and the history of steam power. H. Schuman.

Chicago Style (17th ed.) Citation

Hart, Ivor B. James Watt and the History of Steam Power. New York: H. Schuman, 1949.

MLA (9th ed.) Citation

Hart, Ivor B. James Watt and the History of Steam Power. H. Schuman, 1949.