@book{
title = {Grundstufe},
author = {Emmerich, Sabine},
editor = {Colombo, Federica},
editor = {998076329408896 - Deutsch lernen mit .. Spielen und Rätseln - 1 -  },
editor = {Tit. dalla cop },
year = {2002},
address = {Recanati },
publisher = {ELI},
}