(1994). Safety at street works and road works: : a code of practice issued by the secretaries of state for transport, Scotland and Wales under sections 65 and 124 of the New Roads and street works act 1991. London: HMSO.
Παραπομπή Chicago StyleSafety At Street Works and Road Works: : A Code of Practice Issued By the Secretaries of State for Transport, Scotland and Wales Under Sections 65 and 124 of the New Roads and Street Works Act 1991. London: HMSO, 1994.
Παραπομπή MLASafety At Street Works and Road Works: : A Code of Practice Issued By the Secretaries of State for Transport, Scotland and Wales Under Sections 65 and 124 of the New Roads and Street Works Act 1991. London: HMSO, 1994.
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