New Zealand Business Roundtable. (1998). Excellence isn't optional. New Zealand Business Roundtable.
Dyfyniad Arddull ChicagoNew Zealand Business Roundtable. Excellence Isn't Optional. Wellington, N.Z: New Zealand Business Roundtable, 1998.
Dyfyniad MLANew Zealand Business Roundtable. Excellence Isn't Optional. New Zealand Business Roundtable, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.