Template:Flora URSS 20

Schischkin, B.K. & Juzepczuk, S.V. (eds.) 1954. Flora URSS (Flora Unionis Rerumpublicarum Sovieticarum Socialisticarum) XX. [Labiatae] [in Russian]. xvii + 550 pp., Academia Scientiarum URSS, Mosqua, Leningrad. DJVU English translation: 389 pp. BHL
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