This is a zip file that contains both the AZW3 and MOBI versions which will work on your Kindle. Download it to your PC or Tablet, open, and then transfer your preferred version to your Kindle by USB cable.
In general, the AZW3 should produce better formatting, but if that doesn't display properly, then please try the MOBI. Please note that some of the formatting is not perfect, but this does not in any way affect the readability. File size 50Mb (AZW3 40mb. Mobi 10mb)