Underground construction (Tunneling)
Kniha
Citace v seznamu literatury:
Underground construction (Tunneling). [Washington, D.C.]: U.S. Dept. of Labor, Occupational Safety and Health Administration, 2003. ISBN 9781613442128. Dostupné také z: https://proxy.k.utb.cz/login?url=http://app.knovel.com/hotlink/toc/id:kpUCTOSHA3/underground_construction_tunneling_osha_311506r.