Singh | Transit switch design analysis phase 1. volume 2 / Satya P.-
Singh, Satya P.
Singh Transit switch design analysis phase 1. volume 2 / Satya P.- - Washington, D.C. : TRB - [46]p. - Transit cooperative research program report ; 71 / Transpor-tation Research Board .
Singh Transit switch design analysis phase 1. volume 2 / Satya P.- - Washington, D.C. : TRB - [46]p. - Transit cooperative research program report ; 71 / Transpor-tation Research Board .