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Safety Factors in Construction and Ventilation, Wawona Vehicular Tunnel, Yosemite National Park, California

Diesel Exhaust Contamination of Tunnel Air

Published Year

• 1940-1949 (1)
• 1960-1969 (1)

Subject

• Tunnels -- Ventilation. (2) *
• Tunneling. (1)

Author

• Ash, S. H. (1)
• Holtz, John C. (1)

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