@book
{TN_libero_mab2,
author = {
Enter, Hans
},
title = {
Learning English - Skyline
Workbook, answer key Von Hans Enter ..
},
edition = {
1. Aufl., 1. [Dr.]
}
,
publisher = {Klett},
isbn = {3125103266},
year = {1993},
address = {
Stuttgart
},
url = {
https://katalog.slub-dresden.de/en/?cHash=a8fa44d3bda0cb9d524c2f0ab6715df9&tx_find_find%5Baction%5D=citation&tx_find_find%5Bcontroller%5D=Search&tx_find_find%5Bid%5D=0-110718925X&tx_find_find%5Btype%5D=bibtex
}
}