ULRICH, K. T. E. (2020). Product design and development. McGraw-Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रULRICH, Karl T. Eppinger. Product Design and Development. McGraw-Hill Education, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रULRICH, Karl T. Eppinger. Product Design and Development. McGraw-Hill Education, 2020.
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