@book
{TN_libero_mab2,
author = {
Graf, Dieter
},
title = {
Unser Boden
},
edition = {
1. Aufl.
}
,
publisher = {Urania-Verlag},
isbn = {3332002244},
keywords = {
Boden
},
year = {1988},
booktitle = {Wir und die Natur},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}