APA (7th ed.) Citation

Duncan, J. M., Thorpe, B., & Sumner, P. (1990). Quality assurance in construction. Gower Publishing.

Chicago Style (17th ed.) Citation

Duncan, John M., Brian Thorpe, and Peter Sumner. Quality Assurance in Construction. Aldershot, Hants: Gower Publishing, 1990.

MLA (9th ed.) Citation

Duncan, John M., et al. Quality Assurance in Construction. Gower Publishing, 1990.