Wierzbowski (F.): Two Candidatures for the Throne of Poland, 1574–1575 (Dvié Kandidatoury na polskoii prestol). Warsaw, 1889. 1 vol.
Winkelmann (E.): Bibliotheca Livonie Historica. Berlin, 1878. 1 vol.
Wittsen: North-Western Tartary. Collection of Northern Travels, viii.
Zabiéline (I.): Private Life of the Tsars, and Private Life of the Tsarinas of Russia (Domachnii byt tsarov and Domachnii byt tsarits). Moscow, 1872 and 1895, third edition. 2 vols.
History of Moscow (Istoria Moskvy). Moscow, 1902. 1 vol.
Characteristics of the Knowledge of Ancient Russia. Annals of the Fatherland, 1856.
Original Features of Ancient Architecture. Archives of Russian Art, 1894.
View of the History of the Development of the Muscovite Autocracy. Historical Messenger (Istoritcheskii Viéstnik), 1881.
Zagoskine (G.): History of Political Law in the Muscovite Empire (Istoria prava Moskovskavo gossoudarstva). Kazan, 1877. 1 vol.
Zakrzewski (V.): After the Flight of Henri de Valois (Dzieje Bezkrólewia … 1574–1575). Cracow, 1878. 1 vol.
Relations between the Holy See and Ivan the Terrible (Stosunki miedzy Stolica Apostolska a Iwanem Grozny). Cracow, 1874. 1 vol.
Zaleski (Abbé): The Jesuits in Poland (Jezuici w Polcse). Lemberg, 1900, vol. i.
Zamyslovski (E.): Herberstein's Data, Historical and Geographical. Review of the Ministry of Public Instruction, 1882.
The Conquest of Siberia. Same publication, 1882.
Study of Sylvester. Political Science Collection (Sbornik Gossoudarstviénnykh Znanii). St. Petersburg, 1875, vol. ii.
Zaoustinski (C.): The Metropolitan Macarius. Review of the Ministry of Public Instruction, 1881.
Zarinksi (Father P.): Sketch of the Ancient History of Kazan (Otcherk drevnieï Kazani). Kazan, 1877. 1 vol.
