Welborn Associates

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  The Best Book of Lotus 1-2-3
  by Alan Simpson, Welborn Associates
  Softcover, H.W. Sams, ISBN 0672223074 (0-672-22307-4)
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  The Best Book of Multiplan
  by Alan Simpson, Welborn Associates
  Softcover, H.W. Sams, ISBN 0672223368 (0-672-22336-8)
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  Programmer's Reference Guide for the ATARI 400/800 Computers
  by David L. Heiserman, Welborn Associates
  Softcover, H.W. Sams, ISBN 0672222779 (0-672-22277-9)
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  Unix System V Primer
  by Donald Martin, Stephen Prata, Waite Group, Mitchell Waite, Welborn Associates
  Softcover, H.W. Sams, ISBN 0672224046 (0-672-22404-6)
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  VIC 20 Games, Graphics, and Applications
  by David D. Busch, Welborn Associates
  Softcover, H.W. Sams, ISBN 0672221896 (0-672-22189-6)