Research technical memorandum RTM (series). 33. Scale models of vehicles in soils and snows [with list of references]; presented by C. J. Nuttall, jr. of Wilson, Nuttall, Ralmond, Engineers, Inc., and Robert P. McGowan of Army Transportation Research Command, to 1st International Conference on Mechanics of Vehicle-Soil Systems, Turin, Italy, June 14, 1961.

Tools