{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The influence of calcium, magnesium and potassium nitrates upon the toxicity of certain heavy metals toward fungus spores ..","author_name":"Lon Adrian Hawkins","thumbnail_url":"https://www.ebooknetworking.net/books/117/859/big1178594068.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1178594068.html\">The influence of calcium, magnesium and potassium nitrates upon the toxicity of certain heavy metals toward fungus spores ..</a>","width":400,"height":300}