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Dyfyniad Arddull ChicagoJackson, P. M. Political Economy of Bureaucracy. New Delhi: Heritage, 1983.
Dyfyniad MLAJackson, P. M. Political Economy of Bureaucracy. Heritage, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.