Pettigrew, A. (2011). The Role, Power and Influence of Company Chairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPettigrew, A. The Role, Power and Influence of Company Chairs. 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPettigrew, A. The Role, Power and Influence of Company Chairs. 2011.
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