Kemp, E. L., Metz, L. E., & Kapsch, R. J. (2014). Transportation and technology (First edition.). West Virginia University Press.

Kemp, Emory L., Lance E. Metz, and Robert J. Kapsch. Transportation and Technology. First edition. Morgantown, West Virginia: West Virginia University Press, 2014.

Kemp, Emory L., et al. Transportation and Technology. First edition. West Virginia University Press, 2014.