@book
{TN_libero_mab2,
author = {
},
title = {
Polski krok po kroku
Lehrbuch Poziom A1/A2
},
edition = {
Wyd. 4.
}
,
publisher = {Polish-courses.com},
publisher = {: Ernst Klett-Sprachen},
isbn = {9788393073108},
isbn = {9783125289055},
year = {2013},
year = {, 2013},
address = {
Kraków
,
; Stuttgart
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}