{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"American Railway Signaling Principles and Practices, Chapter XVIII, Electro-Pneumatic Interlocking (Chapter XVIII)","author_name":"A.R.A. Signal Section","thumbnail_url":"https://www.ebooknetworking.net/books/B00/0I4/bigB000I4OIBK.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000I4OIBK.html\">American Railway Signaling Principles and Practices, Chapter XVIII, Electro-Pneumatic Interlocking (Chapter XVIII)</a>","width":400,"height":300}