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Dyfyniad Arddull ChicagoHolzer, Marc, and Kathe Callahan. Government at Work: Best Practices and Model Programs. Thousand Oaks: Sage, 1998.
Dyfyniad MLAHolzer, Marc, and Kathe Callahan. Government at Work: Best Practices and Model Programs. Sage, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.