01157oas 2200349 a 450 991069489490332120060202104525.0(CKB)5470000002364757(OCoLC)63256593(EXLCZ)99547000000236475720060202b19992002 sa engurmnu |||||txtrdacontentcrdamediacrrdacarrierStandard update[electronic resource][Washington, D.C.] U.S. Environmental Protection Agency1999-2002volumes digital, PDF fileTitle from caption (viewed Jan. 31, 2006).Environmental protectionUnited StatesData processingPeriodicalsEnvironmental protectionStandardsUnited StatesPeriodicalsEnvironmental protectionData processingEnvironmental protectionStandardsUnited States.Office of Environmental Information.GPOGPOGPOJOURNAL9910694894903321Standard update3122114UNINA