Dyfyniad APA

Copeland, B. R., & Taylor, M. S. (2003). Trade and the environment: Theory and evidence. Princeton University Press.

Dyfyniad Arddull Chicago

Copeland, Brian Richard, and M. Scott Taylor. Trade and the Environment: Theory and Evidence. Princeton, NJ: Princeton University Press, 2003.

Dyfyniad MLA

Copeland, Brian Richard, and M. Scott Taylor. Trade and the Environment: Theory and Evidence. Princeton University Press, 2003.

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