{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Principles of Occupational Health & Hygiene: An Introduction","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/174/175/big174175058X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-174175058X.html\">Principles of Occupational Health &amp; Hygiene: An Introduction</a>","width":400,"height":300}