Citazione Stile APA (7a Edizione)

Silver, C. S., & DeFries, R. S. (1991). One earth, one future: Our changing global environment. Affiliated East-West press Pvt ltd.

Citazione stile Chigago Style (17a edizione)

Silver, Cheryl Simon, e Ruth S. DeFries. One Earth, One Future: Our Changing Global Environment. New Delhi: Affiliated East-West press Pvt ltd, 1991.

Citatione MLA (9a ed.)

Silver, Cheryl Simon, e Ruth S. DeFries. One Earth, One Future: Our Changing Global Environment. Affiliated East-West press Pvt ltd, 1991.