Saxena, S. C. (2018). Tunnel Engineering (01st.). Dhanpatrai Publication.
Citazione stile Chigago Style (17a edizione)Saxena, Subhash C. Tunnel Engineering. 01st. New Delhi: Dhanpatrai Publication, 2018.
Citatione MLA (9a ed.)Saxena, Subhash C. Tunnel Engineering. 01st. Dhanpatrai Publication, 2018.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.