Griggs, Frank Jr. (August 2010). "Gustav Lindenthal"(PDF). Structure. National Council of Structural Engineers Associations: 56โ57. ISSN1536-4283. Archived from the original(PDF) on 2013-10-10.
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Griggs, Frank Jr. (August 2010). "Gustav Lindenthal"(PDF). Structure. National Council of Structural Engineers Associations: 56โ57. ISSN1536-4283. Archived from the original(PDF) on 2013-10-10.
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Griggs, Frank Jr. (August 2010). "Gustav Lindenthal"(PDF). Structure. National Council of Structural Engineers Associations: 56โ57. ISSN1536-4283. Archived from the original(PDF) on 2013-10-10.