(2014). Vital signs, Volume 21: The trends that are shaping our future = Trends that are shaping our future, volume 21. Island Press.
Chicago-Zitierstil (17. Ausg.)Vital Signs, Volume 21: The Trends That Are Shaping Our Future = Trends That Are Shaping Our Future, Volume 21. Washington, D.C: Island Press, 2014.
MLA-Zitierstil (9. Ausg.)Vital Signs, Volume 21: The Trends That Are Shaping Our Future = Trends That Are Shaping Our Future, Volume 21. Island Press, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.