Παραπομπή σε μορφή APA (7η εκδ.)

Espejo, R., & Reyes, A. (2011). Organizational Systems: Managing Complexity with the Viable System Model. Springer Berlin Heidelberg.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Espejo, Raul, και Alfonso Reyes. Organizational Systems: Managing Complexity with the Viable System Model. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

Espejo, Raul, και Alfonso Reyes. Organizational Systems: Managing Complexity with the Viable System Model. Springer Berlin Heidelberg, 2011.