Land and freshwater molluscs

Eitemau Tebyg

• Molluscs
  gan: Morton, J. E.
  Cyhoeddwyd: (1958)
• Molluscs
  gan: Morton, J E
  Cyhoeddwyd: (1968)
• Molluscs/4th ed.
  gan: Morton, J. E.
• British prosobranch molluscs
  gan: Fretter, Vera
  Cyhoeddwyd: (1962)
• Studies in the structure, physiology and ecology of molluscs : symposia of zoological society of London and malacological society of London
  gan: Fretter, Vera
  Cyhoeddwyd: (1968)