APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.