Si͡e︡nki iz nevidelit͡s︡a
Subtitle: kniga na bŭlgarskata narodna balada.
By: Sŭstavili Bozhan Angelov i Khristo Vakarelski.
Contributors: Vakarelski, Khristo, 1896-
Publisher: Ministerstvo na narodnoto prosvi͡e︡schenie
Published: 1936
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 496
Subjects: Folk songs, Bulgarian.