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Dyfyniad Arddull ChicagoAmerican national. American National Standard of the Safe Use of Lasers. Toledo: The laser Institute of America, 1986.
Dyfyniad MLAAmerican national. American National Standard of the Safe Use of Lasers. The laser Institute of America, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.