{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond","author_name":"Hal Koerner","thumbnail_url":"https://www.ebooknetworking.net/books/B07/L8L/bigB07L8L77DC.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B07L8L77DC.html\">Hal Koerner&#039;s Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond</a>","width":400,"height":300}