copying from the /k/ approved books thread
http://bookzz.org/
https://cse.google.com/cse/publicurl?cx=001639227550064093264:dznewka3cca
Two links that have HUGE libraries of pdfs/ebooks/etc avail for search, had a look for your book and couldnt find it, have you tried the bookz IRC channels?
also bookzz.org is gone, the new link is
http://b-ok.org/