APA (7th ed.) Citation

Hughes, T. B., & Williams, T. (1991). Quality assurance: A framework build on. BSP Professional Books].

Chicago Style (17th ed.) Citation

Hughes, T. B., and T. Williams. Quality Assurance: A Framework Build on. [London: BSP Professional Books], 1991.

MLA (9th ed.) Citation

Hughes, T. B., and T. Williams. Quality Assurance: A Framework Build on. BSP Professional Books], 1991.