Wood, S., & Wood, S. (1997). Heavy Construction. Prentice-Hall.
Dyfyniad Arddull ChicagoWood, Stuart, and Stuart Wood. Heavy Construction. Prentice-Hall, 1997.
Dyfyniad MLAWood, Stuart, and Stuart Wood. Heavy Construction. Prentice-Hall, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.