APA-referens (7:e uppl.)

ASHLEY, C. (1994). Traffic And Highway Engineering For Developments Carol Ashley. Balcwell Scientific Publicatio.

Chicago-referens (17:e uppl.)

ASHLEY, Carol. Traffic And Highway Engineering For Developments Carol Ashley. Balcwell Scientific Publicatio, 1994.

MLA-referens (8:e uppl.)

ASHLEY, Carol. Traffic And Highway Engineering For Developments Carol Ashley. Balcwell Scientific Publicatio, 1994.

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