An introduction to trees /

Eitemau Tebyg

• Manual of the trees of North America (exclusive of Mexico) /
  gan: Sargent, Charles Sprague, 1841-1927
  Cyhoeddwyd: (1961)
• Textbook of dendrology : covering the important forest trees of the United States and Canada /
  gan: Harlow, William Morehouse, 1900-
  Cyhoeddwyd: (1968)
• An introduction to birds.
  gan: Kieran, John, 1892-
  Cyhoeddwyd: (1965)
• Identification of the timbers of temperate North America : including anatomy and certain physical properties of wood /
  gan: Record, Samuel J. (Samuel James), 1881-1945
  Cyhoeddwyd: (1934)
• Important forest insects and diseases of mutual concern to Canada, the United States and Mexico,
  Cyhoeddwyd: (1967)