http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
t. 1-2. Polnoe sobranīe stikhotvorenīĭ: dramy, poėmy, povi︠e︡sti, byliny, ballady, pritchi, pi︠e︡sni, ocherki -- t. 3. Dramaticheskai︠a︡ trilogīi︠a︡: I. Smertʹ Ioanna Groznago. II. T︠S︡ar Fedor. III. T︠S︡ar Boris -- t. 4. Kni︠a︡zʹ Serebri︠a︡nyi; poviestʹ vremen Ioanna Groznago.
From the Estate of George and Mathilda Sabo by Dr. Joseph R. Corcoran & Irene Sabo Corcoran and Family. September 1998.