Rolt, L. T. C. (1967). Transport and communications. Methuen.
Chicago-čujuhus (17. p.)Rolt, L. T. C. Transport and Communications. London: Methuen, 1967.
MLA-čujuhus (9. p.)Rolt, L. T. C. Transport and Communications. Methuen, 1967.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.