{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Pub No 229: Vol 2: Sight Reduction Tables for Marine Navigation: Latitudes 15-30, Inclusive","author_name":"Us Defence Mapping Agency","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000WD69HS.html\">Pub No 229: Vol 2: Sight Reduction Tables for Marine Navigation: Latitudes 15-30, Inclusive</a>","width":400,"height":300}