Barclay, I. (2000). New product development a practice workbook for improving.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarclay, Ian. New Product Development a Practice Workbook for Improving. Oxford, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBarclay, Ian. New Product Development a Practice Workbook for Improving. 2000.
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