APA (7th ed.) Citation

Duncan, M., & Stephen, B. (1999). The construction of houses: Roof structure [. University of the west of England.

Chicago Style (17th ed.) Citation

Duncan, Marshall, and Brown Stephen. The Construction of Houses: Roof Structure [. Bristol: University of the west of England, 1999.

MLA (9th ed.) Citation

Duncan, Marshall, and Brown Stephen. The Construction of Houses: Roof Structure [. University of the west of England, 1999.