Dyfyniad APA

Derucher, K. N., & Heins, P. C. (1979). Bridge and Pier Protective Systems and Devices. Marcel Dekker.

Dyfyniad Arddull Chicago

Derucher, Kenneth N., and P. Conrad Heins. Bridge and Pier Protective Systems and Devices. New York: Marcel Dekker, 1979.

Dyfyniad MLA

Derucher, Kenneth N., and P. Conrad Heins. Bridge and Pier Protective Systems and Devices. Marcel Dekker, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.