WRIGHT, W. (1962). Direct Standard Cost For Decision Making And Control Wilmer Wright. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWRIGHT, Wilmer. Direct Standard Cost For Decision Making And Control Wilmer Wright. McGraw-Hill, 1962.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWRIGHT, Wilmer. Direct Standard Cost For Decision Making And Control Wilmer Wright. McGraw-Hill, 1962.
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