Cita APA

SpringerLink (Online service), & Worldwatch Institute. (2013). Vital Signs, Volume 20: The Trends That Are Shaping Our Future (1st ed. 2013.). Washington, DC: Island Press/Center for Resource Economics : Imprint: Island Press.

Citación estilo Chicago

SpringerLink (Online service), y Worldwatch Institute. Vital Signs, Volume 20: The Trends That Are Shaping Our Future. 1st ed. 2013. Washington, DC: Island Press/Center for Resource Economics : Imprint: Island Press, 2013.

Cita MLA

SpringerLink (Online service), y Worldwatch Institute. Vital Signs, Volume 20: The Trends That Are Shaping Our Future. 1st ed. 2013. Washington, DC: Island Press/Center for Resource Economics : Imprint: Island Press, 2013.