Dyfyniad APA

Yoder, E. J., & Witezak, M. W. (1975). Princeples of Pavement Design (2nd ed.). John Wiley.

Dyfyniad Arddull Chicago

Yoder, Eldon Joseph, and M. W. Witezak. Princeples of Pavement Design. 2nd ed. New York: John Wiley, 1975.

Dyfyniad MLA

Yoder, Eldon Joseph, and M. W. Witezak. Princeples of Pavement Design. 2nd ed. John Wiley, 1975.

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