Pravo na tŭrgovskite marki, promishelnite obrazt︠s︡i i naimenovanii︠a︡ za proizkhod v NR Bŭlgarii︠a︡
Subtitle: zapiski
Publisher: [s.n.]
Published: 1978
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 106