TY  - BOOK
ED  - National Research Council (U.S.)
TI  - Tunnel ventilation, lighting, and operation
SN  - 0309034701 (pbk.)
U1  - 624.193 
PY  - 1982/// [i.e. 1983]
CY  - Washington, D.C.
PB  - National Academy of Sciences
KW  - Tunnels
KW  - Lighting
KW  - Ventilation
N1  - 0; 0; 0; 624_193000000000000_TUN
ER  -