It depends on where you live, but I found it on amazon: http://www.amazon.com/machine-fascistes-Histoire-Histoires-French-ebook/dp/B01EO9QVNM/ref=sr_1_1?ie=UTF8&qid=1462036121&sr=8-1&keywords=cette+machine+tue+les+fascistes

Edit: I just realized that it's a Kindle edition. It's in hardcover edition on Amazon France and Amazon UK.