Παραπομπή σε μορφή APA (7η εκδ.)

GILB, T. (2005). Competitive engineering: A handbook for systems engineering requirements engineering, and software .. Elsevier Butterworth-Heinemann.

Παραπομπή σε μορφή Chicago (17η εκδ.)

GILB, Tom. Competitive Engineering: A Handbook for Systems Engineering Requirements Engineering, and Software .. Amsterdam: Elsevier Butterworth-Heinemann, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

GILB, Tom. Competitive Engineering: A Handbook for Systems Engineering Requirements Engineering, and Software .. Elsevier Butterworth-Heinemann, 2005.