{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A course of mathematics: containing the principles of plane trigonometry, mensuration, navigation, and surveying. Adapted to the method of instruction in the American colleges","author_name":"Jeremiah Day","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3A2/bigB003A2JCTU.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003A2JCTU.html\">A course of mathematics: containing the principles of plane trigonometry, mensuration, navigation, and surveying. Adapted to the method of instruction in the American colleges</a>","width":400,"height":300}