Copeland, B. R., & Taylor, M. S. (2003). Trade and the environment: Theory and evidence. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Copeland, Brian Richard, agus M. Scott Taylor. Trade and the Environment: Theory and Evidence. Princeton, NJ: Princeton University Press, 2003.
Lua MLA (9ú heag.)Copeland, Brian Richard, agus M. Scott Taylor. Trade and the Environment: Theory and Evidence. Princeton University Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.