@book{
title = {The call of the wild},
author = {Heaton, Brian},
editor = {London, Jack},
editor = {Marriott, Patricia},
editor = {West, Michael},
editor = {Versione ridotta e semplificata ad uso scolastico },
editor = {Segue: Questions (p. 99-106) },
year = {1985},
address = {London },
publisher = {Longman},
}