Kongerigerne Danmarks og Norges samt Hertugdømmene Slesvigs og Holsteens Historie indtil vore Tider / 
Gebhardi, Ludwig Albrecht.
Christiani, Wilhelm Ernst.
Odense, 
1776-1798.
Joint authors: Ludwig Albrecht Gebhardi and Wilhelm Ernst Christiani.
Each v. has an additional titlepage. The "Hertugdømmene ... Historie" is by Christiani while the "Kongeriget Norges Historie" and "Kongeriget Danmarks Historie" are by Gebhardi. V. 5 of the "Hertugdømmene ... Historie" is a translation of pt. 1 of Christiani's "Geschichte der Herzogthümer Schleswig und Hollstein unter dem Oldenburgischen Hause".