Svobodnoto vreme i kharmonichnoto razvitie na choveka.
Subtitle: [Izsledvane].
Publisher: BKP
Published: 1970
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 264
Subjects: Leisure.; Labor and laboring classes -- Bulgaria -- Recreation.
Notes: Bibliography: p. 256-[257]
Summary in French.