Army Ground Forces HQ Decimal Correspondence 451.3C - Correspondence Relating to 2.5 ton Cross-Country Carrier Swamp Buggy
Army Air Forces Proving Ground Command - Final Report on Test of Belt and Frame for 1/4-Ton 4x4 Truck - Swamp Rescue Work
Combat Vehicle Systems Section Project Control Files, TT1-650 - Military Evaluation Tests of 'Swamp Skipper' Model 5
5250th Technical Intelligence Composite Company, Engineer Section, Field Unit #4 Report No. XI-3 - Report on Japanese Experimental Swamp Crossing Vehicle