Belle Wuthrich, "Eyes and Spies: How You're Tracked and Why You Should Know (A Visual Exploration)" English | 2017 | ISBN: 1554519101, 155451911X | EPUB | pages: 140 | 8.4 mb
Building Research Establishment, "Working Platforms for Tracked Plant: Good Practice Guide to the Design, Installation, Maintenance and Repair of Ground-supported Working Platforms" English | 2004 | ISBN: 1860817009 | PDF | pages: 53 | 2.3 mb
German Half-Tracked Vehicles of World War 2: Unarmoured Support Vehicles of the German Army 1933-45 1975 | ISBN: 0853683301, 0882543547 | English | 96 Pages | PDF | 47,3 MB