Gordon Murray A. Trail of the Future: Challenge to the Law. Simon & Schuster.
Chicago-čujuhus (17. p.)Gordon Murray A. Trail of the Future: Challenge to the Law. New York: Simon & Schuster.
MLA-čujuhus (9. p.)Gordon Murray A. Trail of the Future: Challenge to the Law. Simon & Schuster.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.