Seneca, J. J., & Taussig, M. K. (1979). Environmental economics (2d ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Seneca, Joseph J., agus Michael K. Taussig. Environmental Economics. 2d ed. Englewood Cliffs, N.J.: Prentice-Hall, 1979.
Lua MLA (9ú heag.)Seneca, Joseph J., agus Michael K. Taussig. Environmental Economics. 2d ed. Prentice-Hall, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.