Shenandoah : the story behind the scenery /

समान संसाधन

• Guidelines : development of national parks and protected areas for tourism.
  प्रकाशित: (1992)
• Categories, objectives and criteria for protected areas : a final report /
  द्वारा: IUCN Commission on National Parks and Protected Areas., Committee on Criteria and Nomenclature
  प्रकाशित: (1978)
• Wild places of Australia
  द्वारा: Pearce, Lee, 1940-
  प्रकाशित: (1983)
• Proceeding of the South Pacific Conference on National Parks and Reserves, 24-27 February 1975, Wellington, New Zealand
  प्रकाशित: (1975)
• Subpar parks : America's most extraordinary national parks & their least impressed visitors /
  द्वारा: Share, Amber
  प्रकाशित: (2021)