TY  - BOOK
ED  - Walim l. garrison chairman
TI  - Highway and bridge maintenance : operation, costs and modeling 
U1  - 388.11 
PY  - 1973///
CY  - Washington, D.C
PB  - National research council
KW  - MCE
N1  - 0; 0; 0; 388_110000000000000_NAT
ER  -