@book{
title = {The return of Sherlock Holmes},
author = {Malvern, Blanche},
editor = {De Conno, Gianni},
editor = {Doyle, Arthur Conan},
editor = {Roberts, Stanley},
editor = {Versione semplificata ad uso scolastico },
editor = {Con apparato didattico },
year = {2007},
address = {Genova },
publisher = {Cideb},
}