Não informado. (1973). Management Services in Government. Civil Service Department Great Britain.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Management Services in Government. London: Civil Service Department Great Britain, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Management Services in Government. Civil Service Department Great Britain, 1973.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.