APA (7th ed.) Citation

Great Britain. Welsh Office, Great Britain. Dept. of the Environment, & Great Britain. Scottish Development Dept. (1976). Preferred methods for highway maintenance. H.M.S.O..

Chicago Style (17th ed.) Citation

Great Britain. Welsh Office, Great Britain. Dept. of the Environment, and Great Britain. Scottish Development Dept. Preferred Methods for Highway Maintenance. London: H.M.S.O., 1976.

MLA (8th ed.) Citation

Great Britain. Welsh Office, et al. Preferred Methods for Highway Maintenance. H.M.S.O., 1976.