Walker, P. A. (1973). Community attitudes to transportation stystems.
Chicago-čujuhus (17. p.)Walker, Paul Anthony. Community Attitudes to Transportation Stystems. 1973.
MLA-čujuhus (9. p.)Walker, Paul Anthony. Community Attitudes to Transportation Stystems. 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
