Uchenie i trud--trud i uchenie
Subtitle: ot eksperiment kŭm prakticheska realizat͡s︡ii͡a︡ : materiali ot sŭveshtanieto, provedeno s pŭrvite sekretari na OK na DKMS za obmi͡a︡na na opit po rabotata v Sofiĭskata gradska organizat͡s︡ii͡a︡ v oblastta na tekhnicheskoto i nauchnoto tvorchestvo na mladezhta i det͡s︡ata na 13 i 14 maĭ 1970 g. v Sofii͡a︡
By: [sŭstavil Velcho Velev].
Publisher: Dimitrovski komunisticheski mladezhki sŭi͡u︡z, T͡S︡entr. kom-t, Otdel "Rabotnicheska mladezh"
Published: 1971
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 127