Title: 40 [i.e. Sorokovaia] godovshchina pervogo se̋zda sovetov rabochikh, bezzemelʹnykh i strelkov Obe̋dinennoi Latvii
Subjects: Sʺezd Sovetov rabochikh, bezzemelʹnykh i strelkov Obe̋dinennoi Latvii (1st : 1919 : Riga)