APA

Department of Transport. Scottish Development Department. Welsh Office [HMSO], . (1976). Notes for guidance on the specification for road and bridge works. London: Department of Transport. Scottish Development Department. Welsh Office [HMSO].

Chicago

Department of Transport. Scottish Development Department. Welsh Office [HMSO], . 1976. Notes for guidance on the specification for road and bridge works. London: Department of Transport. Scottish Development Department. Welsh Office [HMSO].

Harvard

Department of Transport. Scottish Development Department. Welsh Office [HMSO], . (1976). Notes for guidance on the specification for road and bridge works. London: Department of Transport. Scottish Development Department. Welsh Office [HMSO].

MLA

Department of Transport. Scottish Development Department. Welsh Office [HMSO], . Notes for guidance on the specification for road and bridge works. London: Department of Transport. Scottish Development Department. Welsh Office [HMSO]. 1976.