Levy, S. M. (2004). Construction superintendent's operations manual. McGraw-Hill.
Dyfyniad Arddull ChicagoLevy, Sidney M. Construction Superintendent's Operations Manual. New York: McGraw-Hill, 2004.
Dyfyniad MLALevy, Sidney M. Construction Superintendent's Operations Manual. McGraw-Hill, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.