Click on download link –.
That takes you to the . web site where you have the option of selecting "Premium" or "Free".or slow download
Click the "Free" or slow download button.
You are then asked to enter a verification code which is displayed as jumbled letters and numbers.
Enter that and click where it says "download from Cogent network" (or something like that).
Save the file to your hard disk.
It is a .rar or zip file which is an archived file. To open it you need a de-archiving program such as http://www.7-zip.org/
or Zip Reader
(P S Sometimes very seldom When you try to open the archive file you will be asked for a password (in fact when I used 7Zip I was asked twice).
The password is books_for_all (as usual but not always - just see Password field in description area).