TY  - BOOK
AU  - Stringer Peter Ed.
AU  -  Wenzel H. Ed.
TI  - Transportation planning for a better enviornment
T2  - NATO Conference Series II : system Sience, 1
U1  - X4:75, L6 
PY  - 1976///
CY  - New York
PB  - Plenum Press USA       
KW  - Transport Economics -- United States
ER  -