Dyfyniad APA

Croney, D., & Croney, P. (1991). The design and performance of road pavements (2nd ed.). McGraw-Hill Book Co.

Dyfyniad Arddull Chicago

Croney, David, and Paul Croney. The Design and Performance of Road Pavements. 2nd ed. London, New York: McGraw-Hill Book Co, 1991.

Dyfyniad MLA

Croney, David, and Paul Croney. The Design and Performance of Road Pavements. 2nd ed. McGraw-Hill Book Co, 1991.

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