Cita APA

Unguhart, L. C., & ORourke, C. E. (1941). Elementary structural engineering. New York: McGraw-Hill.

Citación estilo Chicago

Unguhart, Leonard Church, y Charles Edward ORourke. Elementary Structural Engineering. New York: McGraw-Hill, 1941.

Cita MLA

Unguhart, Leonard Church, y Charles Edward ORourke. Elementary Structural Engineering. New York: McGraw-Hill, 1941.