Apogeĭ samoderzhavii︠a︡ : Nikolai I /
Presni︠a︡kov, A. E.(Aleksandr Evgenʹevich),1870-1929.
NicholasI,Tsar of Russia.
The Hague : Europe Printing,
1967.
Reprint of the Leningrad, 1925 edition.