International Tunnelling Association. (1986). Tunnelling and Underground Space Technology. Pergamon Press.
Citação do estilo Chicago (17ª ed.)International Tunnelling Association. Tunnelling and Underground Space Technology. Oxford, Inglaterra: Pergamon Press, 1986.
Citação MLA (8ª ed.)International Tunnelling Association. Tunnelling and Underground Space Technology. Pergamon Press, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.