Pyper, R. (1996). Aspects of accountability in the British system of government. Tudor Business Pub..
Čikaški stil citiranja (17. izdanje)Pyper, Robert. Aspects of Accountability in the British System of Government. Eastham, Wirral, Merseyside: Tudor Business Pub., 1996.
MLA način citiranja (8. izdanje)Pyper, Robert. Aspects of Accountability in the British System of Government. Tudor Business Pub., 1996.
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