APA-referens (7:e uppl.)

Dempsey, D. G. Tubular and other iron girder bridges: Particularly describing the Britannia and Conway Tubular Bridges with a sketch of iron bridges (4th. ed.). Crosby Lockwood and Co.

Chicago-referens (17:e uppl.)

Dempsey, Drysdale G. Tubular and Other Iron Girder Bridges: Particularly Describing the Britannia and Conway Tubular Bridges with a Sketch of Iron Bridges. 4th. ed. London: Crosby Lockwood and Co.

MLA-referens (9:e uppl.)

Dempsey, Drysdale G. Tubular and Other Iron Girder Bridges: Particularly Describing the Britannia and Conway Tubular Bridges with a Sketch of Iron Bridges. 4th. ed. Crosby Lockwood and Co.