Yerofeieva, H. (1997). Library Activity of Mykola Sumtsov (from the history of libraries of Slobozhanshchyna).
Chicago-Zitierstil (17. Ausg.)Yerofeieva, H. Library Activity of Mykola Sumtsov (from the History of Libraries of Slobozhanshchyna). 1997.
MLA-Zitierstil (8. Ausg.)Yerofeieva, H. Library Activity of Mykola Sumtsov (from the History of Libraries of Slobozhanshchyna). 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.