80 [i.e.Osemdeset] godini ot osvobozhdenieto na Bulgariia
Subtitle: meotdichni materiali
By: [Sustavili: G.Mladzhov i D.Siromakhov]
Series: Its Poreditsa Metodichni materiali -- 1
Published: 1958
Place of publication: Sofiia
Language: bul
Number of pages: 27