Google Books – How to Publish Your Thesis

If you select a "shelf" of books, then pull down the Options tab, you'll find an "export to XML" option. I was able to read that XML file with Excel 2003 and it generated a table containing the titles, ISBNs, etc. That spreadsheet is a good start, or you could export that as .CSV and pretty much anything will read that.

Here is the link to the API: https://developers.google.com/books/docs/v1/using#WorkingBookshelves

The URL that you need is:

https://www.googleapis.com/books/v1/user/{userId}/bookshelves/{shelf}/volumes

That will work as long as the shelf is public, otherwise you have to have an API key by putting this GET variable on the end:

?key={yourAPIKey}