Fishes of the British and northern European seas /

Eitemau Tebyg

• Seashells: Bivalves of the British and Northern Europian seas
  gan: Moller Christensen, L
  Cyhoeddwyd: (1980)
• Seashells: Bivalves of the British and northern European seas /
  gan: Christensen, J. Moller
  Cyhoeddwyd: (1980)
• Plankton's diatoms of Northern sea
  gan: Lebour
• Bryozoa of the northern seas of the USSR
  gan: Kli︠u︡ge, German Avgustovich
  Cyhoeddwyd: (1975)
• Plankton Diatoms of Northern Seas
  gan: Lebour,marie V
  Cyhoeddwyd: (1930)