TY - BOOK AU - U.S.E.P.A AU - U.S.E.P.A TI - NATIONAL AIR QUALITY AND EMISSIONS TRENDS REPORT 1992 U1 - 363.7392 PY - 1993/// CY - North carolina 27711 PB - U.S.E.P.A KW - NUST N1 - 0; 0; 0; 363_739200000000000_NAT ER -