Não informado. (1948). Management abstracts: Digest and reviews. British Institute of Management.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Management Abstracts: Digest and Reviews. London: British Institute of Management, 1948.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Management Abstracts: Digest and Reviews. British Institute of Management, 1948.
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