01193nam 2200349 a 450 991069915810332120091028090241.0(CKB)5470000002400314(OCoLC)460601226(EXLCZ)99547000000240031420091028d2009 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierU.S. Postal Service[electronic resource] mail delivery efficiency has improved, but additional actions needed to achieve further gains : report to congressional requesters[Washington, D.C.] :U.S. Govt. Accountability Office,[2009]1 online resource (iii, 54 pages) illustrations, mapTitle from PDF title screen (GAO, viewed Oct. 21, 2009)."July 2009.""GAO-09-696."Includes bibliographical references.U.S. Postal Service Postal serviceUnited StatesPostal serviceGPOGPOBOOK9910699158103321U.S. Postal Service3128249UNINA