TY  - GEN
AU  - Ridker,R.G.
TI  - Economic costs of air pollution : studies in measurement
T2  - (Praeger special studies in U.S. economic and social development)
PY  - 1967///
CY  - New York : 
PB  - Frederick A. Praeger
KW  - Air pollution
KW  - Economics
ER  -