Cita APA (7a ed.)
Glenn, J. C., Gordon, T. J., & Grell, M. (2004). 2004 state of the future: <the> millennium project. American Council for The United Nations University.
Cita Chicago Style (17a ed.)
Glenn, Jerome C., Theodore J. Gordon, y Michal Grell. 2004 State of the Future: <the> Millennium Project. Washington: American Council for The United Nations University, 2004.
Cita MLA (9a ed.)
Glenn, Jerome C., et al. 2004 State of the Future: <the> Millennium Project. American Council for The United Nations University, 2004.
Precaución: Estas citas no son 100% exactas.