Dams, parks & politics; resource development & preservation in the Truman-Eisenhower era

Eitemau Tebyg

• Promised land : national parks keep faith with visitors and hard-pressed wildlife /
  Cyhoeddwyd: (1986)
• The American environment /
  Cyhoeddwyd: (1974)
• Conserving American resources.
  gan: Parson, Ruben L.
  Cyhoeddwyd: (1964)
• Resource conservation : economics and policies.
  gan: Ciriacy-Wantrup, S. V. (Siegfried V.), 1906-1980
  Cyhoeddwyd: (1952)
• New Deal planning : the National Resources Planning Board /
  gan: Clawson, Marion, 1905-
  Cyhoeddwyd: (1981)