TY  - BOOK
AU  - Wightman,W.D.
AU  - Calabrese,S.J.
AU  - Forster,E.L.
ED  - United States.
TI  - Special study of pre cast concrete tunnel liner demonstration: lexington market tunnels Baltimore, Meryland 
U1  -  629.2 
PY  - 1981///
CY  - Washington, D.C.
PB  - U.S. Government Printing Office
KW  - Bridges
KW  - Tunnels
N1  - Final report ; Urban mass transport administration
ER  -