Devlin, J., & McGuinness, P. (1986). Geometric design guidelines: : (intersections at grade). Dublin: National Roads Authority.
Παραπομπή Chicago StyleDevlin, J., and P. McGuinness. Geometric Design Guidelines: : (intersections At Grade). Dublin: National Roads Authority, 1986.
Παραπομπή MLADevlin, J., and P. McGuinness. Geometric Design Guidelines: : (intersections At Grade). Dublin: National Roads Authority, 1986.
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