Proceedings of the 3rd Northumbria International Conference on Performance Measurement in Libraries and Information Services : held at Longhirst Management and Training Centre, Longhirst Hall, Northumberland, England, 27-31 August 1999 (engelsk)
Proceedings of the 2nd Northumbria International Conference on Performance Measurement in Libraries and Information Services : held at Longhirst Management and Training Centre, Longhirst Hall, Northumberland, England : 7 to 11 September 1997 (engelsk)
Proceedings of the 1st Northumbria International Conference on Performance Measurement in Libraries and Information Services : held at Longhirst Management and Training Centre, Longhirst Hall, Northumberland, England, 31 August to 4 September 1995 (engelsk)