WHELWRIGHT, S. C. (1992). Revolutionizing Product Development Quantum Leaps In Speed, Efficiency And Quality Steven C. Whelwright And Kim B. Clark. the Free Press.
Lua i Stíl Chicago (17ú heag.)WHELWRIGHT, Steven C. Revolutionizing Product Development Quantum Leaps In Speed, Efficiency And Quality Steven C. Whelwright And Kim B. Clark. the Free Press, 1992.
Lua MLA (8ú heag.)WHELWRIGHT, 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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