Summerfield Publishing Ltd

year of pub­li­ca­ti­onISBNauthor(s)title
1997978-1-901995-00-8C. van Breugel · K KatsKeyBytes for Windows
2001978-1-901995-30-5Nigel Haigh · Cees van Breugel · Karel KatsKeybytes Guide to Microsoft Access: Beginner Level Pack
  ''978-1-901995-39-8Ewart Smith · Sue ChandlerMathbytes Pack (MathsBytes)