Day, R. W. (2006). Foundation engineering handbook design and construction with the 2006 international building code. McGraw-Hill.
Dyfyniad Arddull ChicagoDay, Robert W. Foundation Engineering Handbook Design and Construction with the 2006 International Building Code. New York: McGraw-Hill, 2006.
Dyfyniad MLADay, Robert W. Foundation Engineering Handbook Design and Construction with the 2006 International Building Code. McGraw-Hill, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.