{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Threshold Limit Values for Chemical Substances & Physical Agents & Biological Exposure Indices, 1992-1993","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0936712996.html\">Threshold Limit Values for Chemical Substances &amp; Physical Agents &amp; Biological Exposure Indices, 1992-1993</a>","width":400,"height":300}