@book{
title = {United States part two, Canada},
author = {},
editor = {Ferrari, Corinna},
editor = {Ricci, Franco Maria},
editor = {998042384108896 - Top symbols and trademarks of the world - 2 -  },
editor = {Senza paginazione },
year = {1973},
address = {Milano },
publisher = {Deco press},
}