@book
{TN_libero_mab2,
author = {
Louis, Rudolf
AND
Thuille, Ludwig
},
title = {
Harmonielehre
},
edition = {
9. Aufl.
}
,
publisher = {Klett},
keywords = {
Harmonielehre
},
year = {[ca. 1927]},
address = {
Stuttgart
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}