Drucker, P. F. (1989). The new realities: In government and politics--, in economy and business--, in society--, and in world view. Mandarin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDrucker, Peter Ferdinand. The New Realities: In Government and Politics--, in Economy and Business--, in Society--, and in World View. London: Mandarin, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDrucker, Peter Ferdinand. The New Realities: In Government and Politics--, in Economy and Business--, in Society--, and in World View. Mandarin, 1989.
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