@book{
title = {Arbeitsbuch },
author = {},
editor = {Dallapiazza, Rosa-Maria},
editor = {998068351408896 - Ziel B2/1 : Deutsch als Fremdsprache / Rosa-Maria Dallapiazza .. [et al.] - 1 -  },
year = {2008},
address = {Ismaning },
publisher = {Hueber},
}