Trees in Britain Wild,ornamental and economic and some relatives in other /

Eitemau Tebyg

• Intermediate botany rev. by S. Williams /
  gan: Brimble, Ljf
  Cyhoeddwyd: (1962)
• Handbook of Botany
  gan: Brimble, L.J.F
  Cyhoeddwyd: (2005)
• Ornamental trees
  gan: Peace, S A
  Cyhoeddwyd: (1961)
• Hamlyn guide to Trees of Britain and Europe
  gan: Humphries, C J
  Cyhoeddwyd: (1982)
• Pathologu of trees and shrubs with special reference to Britain /
  Cyhoeddwyd: (1962)