Heins, C. P., & Firmage, D. A. (1979). Design of modern steel highway bridges / (by) C.P. Heins, D.A. Firmage. Wiley.
Chicago Style (17th ed.) CitationHeins, Conrad P., and D. Allan Firmage. Design of Modern Steel Highway Bridges / (by) C.P. Heins, D.A. Firmage. New York: Wiley, 1979.
MLA (9th ed.) CitationHeins, Conrad P., and D. Allan Firmage. Design of Modern Steel Highway Bridges / (by) C.P. Heins, D.A. Firmage. Wiley, 1979.
Warning: These citations may not always be 100% accurate.