Cita APA (7th ed.)

International Society for Ecological Economics & Costanza, R. (1997). An Introduction to ecological economics. St. Lucie Press.

Cita Chicago (17th ed.)

International Society for Ecological Economics i Robert Costanza. An Introduction to Ecological Economics. Boca Raton, Fla: St. Lucie Press, 1997.

Cita MLA (9th ed.)

International Society for Ecological Economics i Robert Costanza. An Introduction to Ecological Economics. St. Lucie Press, 1997.