Book

Iroicheskai︠a︡ pi︠e︡snʹ o pokhodi︠e︡ na Polovt︠s︡ov Udi︠e︡lʹnago Kni︠a︡zi︠a︡ Novagoroda-Si︠e︡verskago Igori︠a︡ Svi︠a︡toslavicha

by Musin-Pushkin, Alekseĭ Ivanovich graf, A. F. Malinovskiĭ, N. N. Bantysh-Kamenskiĭ