Dyfyniad APA
Richardson, B. A. (2001). Defects and deterioration in buildings (2nd ed.). Spon.
Dyfyniad Arddull Chicago
Richardson, Barry A. Defects and Deterioration in Buildings. 2nd ed. London ; New York: Spon, 2001.
Dyfyniad MLA
Richardson, Barry A. Defects and Deterioration in Buildings. 2nd ed. Spon, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.