Keyboard Letter Key Replacement

There is a link that should help, http://www.wikihow.com/Pop-a-Key-Back-Onto-a-Dell-Laptop-Keyboard even though it is for a dell laptop it still most likely will be the same way since most laptop keyboards are built a standard way and even if it is not the same it still might give you an idea of how to put it on, it may be very alike but one part, I dont know but I would think its the same or very close to it.