Grill, R. A., & Johnson, D. A. (2005). Post-construction modifications to fire protection and life safety systems of the World Trade Center towers. National Institute of Standards and Technology, Technology Administration, U.S. Department of Commerce.
Chicago Style (17th ed.) CitationGrill, Raymond A., and Duane A. Johnson. Post-construction Modifications to Fire Protection and Life Safety Systems of the World Trade Center Towers. [Gaithersburg, Md.]: National Institute of Standards and Technology, Technology Administration, U.S. Department of Commerce, 2005.
MLA (9th ed.) CitationGrill, Raymond A., and Duane A. Johnson. Post-construction Modifications to Fire Protection and Life Safety Systems of the World Trade Center Towers. National Institute of Standards and Technology, Technology Administration, U.S. Department of Commerce, 2005.