APA-referens

Costanza, R. (2015). Introduction to ecological economics (2nd ed.). CRC Press.

Chicago-stil citat

Costanza, Robert....[et.al]. Introduction to Ecological Economics. 2nd ed. Boca Raton: CRC Press, 2015.

MLA-referens

Costanza, Robert....[et.al]. Introduction to Ecological Economics. 2nd ed. CRC Press, 2015.