Research Triangle Park, N.C. : U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards ; [Springfield, Va. :] : [Available from the National Technical Information Service], [1992]
Physical Details
1 volume (various pagings) : illustrations ; 28 cm
OCLC
ocm28773300
"Developed as part of a joint effort between the U.S. Environmental Protection Agency and state and local air pollution control agencies"--Cover.
Distributed to depository libraries in microfiche.
"July 1992."
Includes index.
"EPA 453/R-92-002"--Cover.
Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1993] 9 microfiches : negative.