Henry Neely Ogden
Larry W. Mays
American Iron and Steel Institute
Ronald Ernest Bartlett
Christian Rack
Unknown Author
Davis Ottati
Great Britain. Working Party on the Design and Construction of Underground Pipe Sewers.
Ronald E. Bartlett
Eugeniu Secară
Albert Valentin
Fedorov, Nikolaĭ Fedorovich.
Thomson, John
Rudolf Lautrich
G. S. Coleman
Hyperion Engineers.
L. B Escritt
American Society of Civil Engineers
Transport and Road Research Laboratory.