Click on this link:
http://www.aquilerosanero.com/forum/...mo-calcio.html 
I only have a book called "La cavalcata rosanero" and it came out immediately after we've got promoted to serie A (so may-june 2004)... There are pictures, results and reports for that season but also a good amount of old pictures and story of your club.
I've only heard something about this book:
http://www.librieprofessioni.it/ecom...php?volume=240 but i've never read it
You can also see the wikipedia page in italian:
http://it.wikipedia.org/wiki/Palermo_Calcio or the english version:
http://en.wikipedia.org/wiki/U.S._Citt%C3%A0_di_Palermo (maybe with less information).
Check this out as well:
http://www.aquilerosanero.com/forum/...e-sul-palermo/