Dyfyniad APA
Wright, P. H., & Radnor J. Paquette. (2004). Highway engineering (5th ed.). John Wiley.
Dyfyniad Arddull Chicago
Wright, Paul H., and Radnor J. Paquette. Highway Engineering. 5th ed. Hoboken, NJ: John Wiley, 2004.
Dyfyniad MLA
Wright, Paul H., and Radnor J. Paquette. Highway Engineering. 5th ed. John Wiley, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.