{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Examination Questions for Certificates of Competency as Mine Inspector, Mine Foreman, Mine Manager, Fire-Boss, Hoisting Engineer, Etc: As Given by the State Examining Boards (Classic Reprint)","author_name":"Pennsylvania State Examining Boards","thumbnail_url":"https://www.ebooknetworking.net/books/028/282/big0282827366.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0282827366.html\">Examination Questions for Certificates of Competency as Mine Inspector, Mine Foreman, Mine Manager, Fire-Boss, Hoisting Engineer, Etc: As Given by the State Examining Boards (Classic Reprint)</a>","width":400,"height":300}