@misc{a+complete+treatise+on+cast+and+wrought+iron+bridge+construction+including+iron+foundations+in+three+parts+theoretical+practical+and+descriptive+vol+2+plates,
    author = {Humber, William},
    title = {A complete treatise on cast and wrought iron bridge construction, including iron foundations : in three parts, theoretical, practical, and descriptive. Vol. 2, Plates},
    address = {London},
    publisher = {E. & F. N. Spon},
    date = {1861}
}