@book{
title = {Percy Jackson & the Olympians.},
author = {Riordan, Rick},
editor = {998032514908896 - Percy Jackson and the Olympians Hardcover Boxed Set - 1 -  },
editor = {The lightning thief -  },
editor = {Età: dai 9 ai 14 anni },
year = {2005},
address = {New York },
publisher = {Hyperion},
}