Extact der Sämbelichen Landtäglichen Schlüssen de Anno MDCXVIII bis MDCCXLIV - (:unkn) unknown (My University, 1751)
Keywords: Research Subject Categories::HUMANITIES and RELIGION::History and philosophy subjects::History subjects::History; Latvijas vēsture; Baltische Provinzen (Russland) - Gouvernements; Landtāgs; Landtag; Baltijas guberņas (Krievija) - parvalde