Brian Clegg, "How to Build a Time Machine: The Real Science of Time Travel" English | 2013 | ISBN: 0312656882, 1250024226 | 320 pages | MOBI / PDF | 1.62 MB
Mark Joseph Young, "The Essential Guide To Time Travel: Temporal Anomalies and Replacement Theory" English | 2021 | ISBN: 1989940293 | EPUB | pages: 218 | 0.5 mb