Petrova, M. A. Hermann Karl von Keyserlingk and the Recognition of the Russian Imperial Title by the Holy Roman Empire in 1745–1746. MGIMO University Press.
Chicago Style (17th ed.) CitationPetrova, M. A. Hermann Karl Von Keyserlingk and the Recognition of the Russian Imperial Title by the Holy Roman Empire in 1745–1746. MGIMO University Press.
MLA (9th ed.) CitationPetrova, M. A. Hermann Karl Von Keyserlingk and the Recognition of the Russian Imperial Title by the Holy Roman Empire in 1745–1746. MGIMO University Press.
Warning: These citations may not always be 100% accurate.