Herders Konversations-Lexikon (third edition in German, 8 volumes; St. Louis, MO: Herder, 1902-1007) (stable link)
New Online Books
http://onlinebooks.library.upenn.edu/webbin/book//lookupid?key=olbp68679
Free ebooks and useful pdf
Herders Konversations-Lexikon (third edition in German, 8 volumes; St. Louis, MO: Herder, 1902-1007) (stable link)
New Online Books
http://onlinebooks.library.upenn.edu/webbin/book//lookupid?key=olbp68679