Dyfyniad APA

ReVelle, P., & ReVelle, C. (1992). The global environment: Securing a sustainable future. Jones and Bartlett.

Dyfyniad Arddull Chicago

ReVelle, Penelope, and Charles ReVelle. The Global Environment: Securing a Sustainable Future. Boston: Jones and Bartlett, 1992.

Dyfyniad MLA

ReVelle, Penelope, and Charles ReVelle. The Global Environment: Securing a Sustainable Future. Jones and Bartlett, 1992.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.