Gehring, K. H. (1995). Extending the limits of shield tunnelling: Prerequisites, concepts and step towards realisation. Himpunan Mahasiswa Tambang ITB.
Chicago Style (17th ed.) CitationGehring, K H. Extending the Limits of Shield Tunnelling: Prerequisites, Concepts and Step Towards Realisation. Himpunan Mahasiswa Tambang ITB, 1995.
MLA (8th ed.) CitationGehring, K H. Extending the Limits of Shield Tunnelling: Prerequisites, Concepts and Step Towards Realisation. Himpunan Mahasiswa Tambang ITB, 1995.
Warning: These citations may not always be 100% accurate.