01498nam a22003371 4500000939470MiAaHDL20250726000000.0m d cr bn ---auaua881219s1973 dcua f000 0 eng d(MiU)990009394700106381sdr-miu.990009394700106381(MiU)MIU01000000000000000939470-goog(OCoLC)1252184(RLIN)MIUG88-B59355(MiU)Aleph000939470NICNICUtOrBLWUnited States.Defense Civil Preparedness Agency.http://id.loc.gov/authorities/names/n80046767http://id.loc.gov/rwo/agents/n80046767Mass thickness manual for walls, floors and roofs.[Washington] :[U. S. Govt. Print. Off.],1973.iii, 48 p. :illus. ;26 cm.texttxtrdacontentunmediatednrdamediavolumencrdacarrierTR-68"Supersedes TR-68 dated June 1971."Previous ed. published by the Office of Civil Defense.Mode of access: Internet.Roofs.http://id.loc.gov/authorities/subjects/sh85115332Floors.http://id.loc.gov/authorities/subjects/sh85049184Walls.http://id.loc.gov/authorities/subjects/sh85144957United States.Office of Civil Defense.Mass thickness manual for walls, floors and roofs.3901504643148500093947020241218064236.020250726000000.020260316140700.02026-03-17T06:34:06Z2025-01-04T18:30:02ZSDR-MIUmiuALMAprepare.pl-004-009BKsdr-miu.990009394700106381MiUSDRMIU000939470mdp.39015046431485MIU990009394700106381MIUMIU20260317googlemdp.390150464314851973pdbibUS fed doc