{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Relation between and precision of dust counts (light- and dark-field) from simultaneous impinger, midget-impinger, electric-precipitator, and filter-paper samples","author_name":"Carlton E. Brown","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3HN/bigB003HNO22Y.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003HNO22Y.html\">Relation between and precision of dust counts (light- and dark-field) from simultaneous impinger, midget-impinger, electric-precipitator, and filter-paper samples</a>","width":400,"height":300}