Dyfyniad APA

WRIGHT, P. H. (2004). Highway engineering. John Wiley & Sons.

Dyfyniad Arddull Chicago

WRIGHT, Paul H. Highway Engineering. John Wiley & Sons, 2004.

Dyfyniad MLA

WRIGHT, Paul H. Highway Engineering. John Wiley & Sons, 2004.

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