Gilb, T., & Brodie, L. (2005). Competitive engineering: A hand book for systems engineering, requirements engineering and software engineering using planguage. Butterworth Heinemann.
Dyfyniad Arddull ChicagoGilb, Tom, and Lindsey Brodie. Competitive Engineering: A Hand Book for Systems Engineering, Requirements Engineering and Software Engineering Using Planguage. Oxford: Butterworth Heinemann, 2005.
Dyfyniad MLAGilb, Tom, and Lindsey Brodie. Competitive Engineering: A Hand Book for Systems Engineering, Requirements Engineering and Software Engineering Using Planguage. Butterworth Heinemann, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.