If you can find it in ePub format (or some other formats) you could strip the DRM and convert it to MOBI. Other stores do have other formats. The Adobe ADE ePub is the easiest for me to get converted. (We can help guide you with the deDRMing if you need help. Converting is easy using calibre.)

I hope you can find this ebook. I've read about 20% of it and it is really good.