Fortran
 The Fortran company
  The Fortran Company is the place to find outstanding products, services, and general
  information related to the Fortran programming language.  In addition to the usual things
  to buy, you will find many useful items that are free.
 Fortran Library
  A Free Technical Programming Resource.
 Absoft Corporation
  Fortran Toolsets.

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AutoLisp
 xarch AutoCAD info + tools
  Educational AutoCAD related info and tools.

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Pressure Vessel
 TUBELAR EXCHANGER MANUFACTURERS ASSOCIATION, INC
  (Self-evident)
 Japanese Standards Association
  (Self-evident) 

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Delphi

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Special Thanks
 Moss, Dennis R., "PRESSURE VESSEL DESIGN MANNUAL" Third Edition, 2004,
 Gulf Professional Publishing is an imprint of Elsevier.