1.- The Googlebooks is, overall, a project to digitized large libraries belonging to Universities and a big different group of institutions. This project need to deal with the Copyrights of each volume, and this fact allow to bring the books under the actual state of the copyright into the United States. This means: a book legal and completely free to download may cannot have the same rights to be downloaded outside the U. S. Course, the team of Googlebooks use a list of ip’s to restrict the access of other countries to the books.
For this little howto all the data and screenshots have the rules applied to Mexico, my natal country. And these rules can be completely compatible with your oun contry.

2.- All the examples have Patrologia Latina’s related addresses, you can try to apply them to other volumes. Please observe: the links of the list had been all verified with download purposes, and the links unavailables are marking with black color and white fonts.

3.- Locate the volume desired, and select and copy your link.

4.- Paste the link in the address bar of your browser. If the ip filter is working over your country, then the result will be the next:

5.- Use a proxy anonymizer to open your link.

6.- When the ‘download pdf’ be showed,

select the ‘read this book’ option to verify the availability of the book.

In this screen, place your mouse over the ‘download’ link,

and use your menu bottom’s mouse, and select the ‘save link as’ option.

Select your favorite folder to save the book.

Note that the name and extension must be differents to the pdf desired.

The downloaded file must have this aspect:

Change the name and the extension of your file,

and your file will be ready to be open with your favorite pdf’s reader.