Citazione Stile APA (7a Edizione)
Glenn, J. C., Gordon, T. J., & Grell, M. (2005). 2005 State of the future: <the> millennium project. American Council for The United Nations University.
Citazione stile Chigago Style (17a edizione)
Glenn, Jerome C., Theodore J. Gordon, e Michal Grell. 2005 State of the Future: <the> Millennium Project. Washington: American Council for The United Nations University, 2005.
Citatione MLA (9a ed.)
Glenn, Jerome C., et al. 2005 State of the Future: <the> Millennium Project. American Council for The United Nations University, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.