Powell, C., & Butler, A. (1980). The Parliamentary and Scientific Committee: The first forty years, 1939-1979. Croom Helm.
Chicago Style (17. basım) AtıfPowell, Christopher, ve Arthur Butler. The Parliamentary and Scientific Committee: The First Forty Years, 1939-1979. London: Croom Helm, 1980.
MLA (9th ed.) AtıfPowell, Christopher, ve Arthur Butler. The Parliamentary and Scientific Committee: The First Forty Years, 1939-1979. Croom Helm, 1980.
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