3Building Seismic Safety Council, Federal Emergency Management Agency, National Earthquake Hazards Reduction Program. NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures (FEMA450), Part 1: Provisions, (2003 ed) [S]. Washington D C: Building Seismic Safety Council, 2004.
4Building Seismic Safety Council, Federal Emergency Management Agency, National. Earthquake Hazards Reduction Program. NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures (FEMA450), Part 2: Commentary, (2003 ed) [S]. Washington D C: Building Seismic Safety Council, 2004.