Cita APA

Firmage, D. A. 1., & Heins, C. P. (1979). Design of modern steel highway bridges. New York, New York: J. Wiley.

Citación estilo Chicago

Firmage, David Allan 1918-2016, y Conrad P. Heins. Design of Modern Steel Highway Bridges. New York, New York: J. Wiley, 1979.

Cita MLA

Firmage, David Allan 1918-2016, y Conrad P. Heins. Design of Modern Steel Highway Bridges. New York, New York: J. Wiley, 1979.