{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Ventilating methods and safety measures used in the temporary ventilation of the King Solomon tunnel, Frisco, Summit County, Colo","author_name":"R. L. Bolmer","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3HK/bigB003HKQHFC.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003HKQHFC.html\">Ventilating methods and safety measures used in the temporary ventilation of the King Solomon tunnel, Frisco, Summit County, Colo</a>","width":400,"height":300}