American Society of civil Engineers. (1985). Task Committe on Design of Outlet Control Structure. American society of Civil Engineers.
Dyfyniad Arddull ChicagoAmerican Society of civil Engineers. Task Committe on Design of Outlet Control Structure. New York: American society of Civil Engineers, 1985.
Dyfyniad MLAAmerican Society of civil Engineers. Task Committe on Design of Outlet Control Structure. American society of Civil Engineers, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.