Dyfyniad APA
Sing,Gurucharan, & Sing, J. (2008). Highway Engineering (5th ed.). Standard Publishers.
Dyfyniad Arddull Chicago
Sing,Gurucharan, and Jagdish Sing. Highway Engineering. 5th ed. Delhi: Standard Publishers, 2008.
Dyfyniad MLA
Sing,Gurucharan, and Jagdish Sing. Highway Engineering. 5th ed. Standard Publishers, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.