TY - BOOK AU - Musick, David. CN - EP 4.2: CY - [Research Triangle Park, N.C.] : DA - [1997] ID - 222832 KW - Particles KW - Air KW - Air quality management N1 - Cover title. N1 - "February 1997." N1 - "EPA-454/R-97002a." PB - U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Monitoring and Quality Assurance Group, Emissions, Monitoring, and Analysis Division, PP - [Research Triangle Park, N.C.] : PY - [1997] T1 - Quality assurance proceduresindex to key provisions, proposed requirements for designation of reference and equivalency methods for PM2.5 and ambient air quality surveillance for particulate matter proposed rule / TI - Quality assurance proceduresindex to key provisions, proposed requirements for designation of reference and equivalency methods for PM2.5 and ambient air quality surveillance for particulate matter proposed rule / ER -