Παραπομπή APA

Gilb, T., & Brodie, L. (2005). Competitive engineering: A hand book for systems engineering, requirements engineering and software engineering using planguage. Butterworth Heinemann.

Παραπομπή Chicago Style

Gilb, Tom, και Lindsey Brodie. Competitive Engineering: A Hand Book for Systems Engineering, Requirements Engineering and Software Engineering Using Planguage. Oxford: Butterworth Heinemann, 2005.

Παραπομπή MLA

Gilb, Tom, και Lindsey Brodie. Competitive Engineering: A Hand Book for Systems Engineering, Requirements Engineering and Software Engineering Using Planguage. Butterworth Heinemann, 2005.