APA (7th ed.) Citation

Emerson, W., Gromort, G., & Vignal, P. (1925). Old bridges of France. American institute of architects.

Chicago Style (17th ed.) Citation

Emerson, William, Georges Gromort, and Pierre Vignal. Old Bridges of France. New York: American institute of architects, 1925.

MLA (9th ed.) Citation

Emerson, William, et al. Old Bridges of France. American institute of architects, 1925.