{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Modern developments in railway signalling: A treatise dealing with the theory and application of (1) track-circuiting, (2) power signalling and (3) automatic train control","author_name":"Arthur Ewart Tattersall","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00088HS7C.html\">Modern developments in railway signalling: A treatise dealing with the theory and application of (1) track-circuiting, (2) power signalling and (3) automatic train control</a>","width":400,"height":300}