APA (7th ed.) Citation

Hopkins, H. J. (1970). A span of bridges: An illustrated history. David & Charles.

Chicago Style (17th ed.) Citation

Hopkins, Henry James. A Span of Bridges: An Illustrated History. Newton Abbot: David & Charles, 1970.

MLA (9th ed.) Citation

Hopkins, Henry James. A Span of Bridges: An Illustrated History. David & Charles, 1970.