{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"C564 Occurrences of gold and other metals in the upper Chulitna District, Alaska. 1968, 1968, Geological Survey Circular, C564.","author_name":"United States Geological Survey.","thumbnail_url":"https://www.ebooknetworking.net/books/B00/BXQ/bigB00BXQGQC6.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00BXQGQC6.html\">C564 Occurrences of gold and other metals in the upper Chulitna District, Alaska. 1968, 1968, Geological Survey Circular, C564.</a>","width":400,"height":300}