A Manual of Practical Instruction in the Analysis, Calculation, and Design of Steel Truss and Girder Bridges for Railroads and Highways
Frank O. Dufour, C.E.
Consulting Engineer, United Engineers and Constructors Formerly Professor and Director of Division of Civil Engineering, Lafayette College
C. Paul Schantz
Assistant Engineer of Bridges, Pennsylvania Railroad Formerly Instructor in Structural Engineering, Drexel Institute
American Technical Society
Chicago U. S. A.