APA (7th ed.) Citation

Steinman, D. B., & Watson, S. R. (1941). Bridges and their builders. G. P. Putnam.

Chicago Style (17th ed.) Citation

Steinman, D. B., and Sara Ruth Watson. Bridges and Their Builders. New York: G. P. Putnam, 1941.

MLA (9th ed.) Citation

Steinman, D. B., and Sara Ruth Watson. Bridges and Their Builders. G. P. Putnam, 1941.