Plant taxonomy, geography and ecology in the Estonian S.S.R.

Ижил төстэй зүйлс

• Entomological research in the Estonian S.S.R.
  Хэвлэсэн: (1968)
• History of the Estonian SSR
  -н: Juhan Kahk; Karl Siilivask
  Хэвлэсэн: (1979)
• Electrification of the estonian SSR
  -н: Kala K., Vabar M.
  Хэвлэсэн: (1979)
• Some Aspects of Botanical Research in the Estonian S.S.R.
  Хэвлэсэн: (1975)
• Avademy of sciences of the estonian SSR.
  Хэвлэсэн: (1986)