Keller, S. (1963). Beyond the ruling class: Strategic elites in modern society. Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKeller, Suzanne. Beyond the Ruling Class: Strategic Elites in Modern Society. Nueva York: Random House, 1963.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKeller, Suzanne. Beyond the Ruling Class: Strategic Elites in Modern Society. Random House, 1963.
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