{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Earth's Core and Geomagnetism, 1963, Commonwealth and International library of science, technology, engineering and liberal studies. Geophysics division, Volume 1 : pages 1-137.","author_name":"J. A. Jacobs","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00BXTF3KO.html\">The Earth&#039;s Core and Geomagnetism, 1963, Commonwealth and International library of science, technology, engineering and liberal studies. Geophysics division, Volume 1 : pages 1-137.</a>","width":400,"height":300}