Ryall, M., Parke, G., Harding, J., Ryall, M. J., Parke, G. A. R., & Harding, J. E. (2000). The manual of bridge engineering. London: Thomas Telford.
Παραπομπή Chicago StyleRyall, M.J., G.A.R Parke, J.E Harding, M. J. Ryall, G. A. R. Parke, and J. E. Harding. The Manual of Bridge Engineering. London: Thomas Telford, 2000.
Παραπομπή MLARyall, M.J., et al. The Manual of Bridge Engineering. London: Thomas Telford, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.