Keller, B. A., & Berg, L. S. (1940). Rastitel'nost' SSSR. Akad. Nauk SSSR.
Chicago Style (17th ed.) CitationKeller, B. A., and Lev Semenovič Berg. Rastitel'nost' SSSR. Moskva [u.a.]: Akad. Nauk SSSR, 1940.
MLA (9th ed.) CitationKeller, B. A., and Lev Semenovič Berg. Rastitel'nost' SSSR. Akad. Nauk SSSR, 1940.
Warning: These citations may not always be 100% accurate.