WHELWRIGHT, S. C. (1992). Revolutionizing Product Development Quantum Leaps In Speed, Efficiency And Quality Steven C. Whelwright And Kim B. Clark. the Free Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWHELWRIGHT, Steven C. Revolutionizing Product Development Quantum Leaps In Speed, Efficiency And Quality Steven C. Whelwright And Kim B. Clark. the Free Press, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWHELWRIGHT, Steven C. Revolutionizing Product Development Quantum Leaps In Speed, Efficiency And Quality Steven C. Whelwright And Kim B. Clark. the Free Press, 1992.
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