Παραπομπή σε μορφή APA (7η εκδ.)

International Institute for Applied Systems Analysis. (2019). .Options: .The power of the crowd. International Institute for Applied Systems Analysis.

Παραπομπή σε μορφή Chicago (17η εκδ.)

International Institute for Applied Systems Analysis. .Options: .The Power of the Crowd. New york: International Institute for Applied Systems Analysis, 2019.

Παραπομπή σε μορφή MLA (9th εκδ.)

International Institute for Applied Systems Analysis. .Options: .The Power of the Crowd. International Institute for Applied Systems Analysis, 2019.