Dyfyniad APA
Hurd, M. K. (1979). Formwork for concrete (4th ed.). American Concrete Institute.
Dyfyniad Arddull Chicago
Hurd, M. K. Formwork for Concrete. 4th ed. Detroit: American Concrete Institute, 1979.
Dyfyniad MLA
Hurd, M. K. Formwork for Concrete. 4th ed. American Concrete Institute, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.