Archaeology in the U.S.S.R /

Eitemau Tebyg

• Archaeology in the U.S.S.R /
  gan: Mongait, Alexander
  Cyhoeddwyd: (1959)
• Flora of the U.S.S.R.
  gan: Komarov, V. L.
• Flora of the U.S.S.R.
• Flora of the U.S.S.R.
• Biology of the seas of the U.S.S.R.
  gan: Zenkevitch,L
  Cyhoeddwyd: (1963)