Northamptonshire (England). Roads and Bridges Department.

• Annual report of the County Surveyor for the year ended 31st March 1968
• Annual report of the County Surveyor for the year ended, 31st March, 1970
• Annual report of the County Surveyor for the year ended, 31st March, 1971
• Annual report of the County Surveyor for the year ended, 31st March, 1972
• Annual report of the County Surveyor for the year ended, 31st March, 1973
• Wellingborough, report on seven alternative routes for the principal roads nos. 5 & 6