Philosophers of the earth : conversations with ecologists /

Eitemau Tebyg

• The kindly fruits of the earth : recollections of an embryo ecologist /
  gan: Hutchinson, G. Evelyn (George Evelyn), 1903-
  Cyhoeddwyd: (1979)
• To live on earth; man and his environment in perspective.
  gan: Brubaker, Sterling
  Cyhoeddwyd: (1972)
• Patient earth /
  gan: Harte, John, 1939-
  Cyhoeddwyd: (1971)
• The wounded earth; an environmental survey.
  gan: Marzani, Carl
  Cyhoeddwyd: (1972)
• The forest and the sea : a look at the economy of nature and the ecology of man.
  gan: Bates, Marston, 1906-1974
  Cyhoeddwyd: (1960)