Bamford, C. G., & Robinson, H. (1978). Geography of transport. MacDonald and Evans.
Chicago-čujuhus (17. p.)Bamford, Colin Grahame, juo Harry Robinson. Geography of Transport. Plymouth: MacDonald and Evans, 1978.
MLA-čujuhus (9. p.)Bamford, Colin Grahame, juo Harry Robinson. Geography of Transport. MacDonald and Evans, 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.