Dyfyniad APA
Perkins, P. H. (1997). Repair, protection and waterproofing of concrete structures (3rd ed.). E&FN Spon.
Dyfyniad Arddull Chicago
Perkins, Philip Harold. Repair, Protection and Waterproofing of Concrete Structures. 3rd ed. London ; New York: E&FN Spon, 1997.
Dyfyniad MLA
Perkins, Philip Harold. Repair, Protection and Waterproofing of Concrete Structures. 3rd ed. E&FN Spon, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.