Littlejohn, G. S., & Littlejohn, G. S. (1997). Ground anchorages and anchored structures: Proceedings of the international conference organized by the Institution of Civil Engineers and held in London, UK, on 20-21 March 1997. London: Telford.
Παραπομπή Chicago StyleLittlejohn, G. S., and G. S. Littlejohn. Ground Anchorages and Anchored Structures: Proceedings of the International Conference Organized By the Institution of Civil Engineers and Held in London, UK, On 20-21 March 1997. London: Telford, 1997.
Παραπομπή MLALittlejohn, G. S., and G. S. Littlejohn. Ground Anchorages and Anchored Structures: Proceedings of the International Conference Organized By the Institution of Civil Engineers and Held in London, UK, On 20-21 March 1997. London: Telford, 1997.