TY  - BOOK
AU  - Hayes,B.D.
ED  - United States.
TI  - Motor vehicle emissions control book seven catalytic converter systems
U1  - 629.2 
PY  - 1977///
CY  - Washington, D.C.
PB  - U.S. Environmental Protection Agency
KW  - Motor Vehicles
KW  - Automobiles
N1  - November 1977
ER  -