Cita APA

Silver, C. S., & DeFries, R. S. (1990). One earth one future: Our changing global environment. Washington, D.C.: National Academy Press.

Citación estilo Chicago

Silver, Cheryl Simon,, y Ruth S. DeFries. One Earth One Future: Our Changing Global Environment. Washington, D.C.: National Academy Press, 1990.

Cita MLA

Silver, Cheryl Simon,, y Ruth S. DeFries. One Earth One Future: Our Changing Global Environment. Washington, D.C.: National Academy Press, 1990.