@misc{a+complete+treatise+on+cast+and+wrought+iron+bridge+construction+including+iron+foundations+in+three+parts+theoretical+practical+and+descriptive+illustrated+by+numerous+examples+drawn+to+a+large+scale+vol+1+text, author = {Humber, William}, title = {A complete treatise on cast and wrought iron bridge construction, including iron foundations : in three parts, theoretical, practical, and descriptive : illustrated by numerous examples, drawn to a large scale. Vol. 1, Text}, address = {London}, publisher = {E. & F.N. Spon}, date = {1861} }