@book
{TN_libero_mab2,
author = {
Gradmann, Erwin
},
title = {
Baustilkunde
},
publisher = {Hallwag},
keywords = {
Baustil
},
year = {[1956]},
booktitle = {Hallwag-Taschenbücherei ; 15},
address = {
Bern
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}