Παραπομπή σε μορφή APA (7η εκδ.)

Hay, D. C. (2003). Requirements analysis: From business views to Architecture (1a. ed.). Pearson Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hay, David C. Requirements Analysis: From Business Views to Architecture. 1a. ed. Upper Saddle River: Pearson Education, 2003.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hay, David C. Requirements Analysis: From Business Views to Architecture. 1a. ed. Pearson Education, 2003.