Title: Bartók Bʹela ismeretlen levelei a Tudomʹanyos Akadʹemia Kʺonyvtʹarʹaban
Subtitle: Unknown letters of Bʹela Bartʹok in the Library of the Hungarian Academy of Sciences. [Szerk] Gergely Pʹal.
First published: 1961
LC classification: ML410.B26 A45