{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Programmed learning aid for using the metric system (Irwin Programmed Learning Aid series)","author_name":"Roger H Hermanson","thumbnail_url":"https://www.ebooknetworking.net/books/025/601/big0256017727.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0256017727.html\">Programmed learning aid for using the metric system (Irwin Programmed Learning Aid series)</a>","width":400,"height":300}