You can't see any rule of burning an Holy Book inside that book. But its your respect which you have to give to that Book. I don't think that you may see any rule of Burning Bible inside it, but as far as respect is concerned, if you burn it, then its your dis-obedience to the "rules" of Bible.
Any way, I got my answer about how much Christians obedient to there books are !!! I don't want to discuss this topic further.
And for Urdu Language members, I'm writing a peace of word for them:
آپ نے دیکھا کہ یہ چوڑے چمار عیساءی اپنی کتاب انجیل کو بھی جلا دینے کی اجازت دے رہے ہیں۔۔ کیا دین ہے ان خبیثوں کا ؟؟؟