Gilb, T., & Brodie, L. (2005). Competitive engineering: A hand book for systems engineering, requirements engineering and software engineering using planguage. Butterworth Heinemann.
Chicago-stil citatGilb, Tom, och Lindsey Brodie. Competitive Engineering: A Hand Book for Systems Engineering, Requirements Engineering and Software Engineering Using Planguage. Oxford: Butterworth Heinemann, 2005.
MLA-referensGilb, Tom, och Lindsey Brodie. Competitive Engineering: A Hand Book for Systems Engineering, Requirements Engineering and Software Engineering Using Planguage. Butterworth Heinemann, 2005.
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