Cita APA (7a ed.)

Bormann, F. H., & Kellert, S. R. (1991). Ecology, economics, ethics: The broken circle. Yale University Press.

Cita Chicago Style (17a ed.)

Bormann, F. Herbert, y Stephen R. Kellert. Ecology, Economics, Ethics: The Broken Circle. London: Yale University Press, 1991.

Cita MLA (8a ed.)

Bormann, F. Herbert, y Stephen R. Kellert. Ecology, Economics, Ethics: The Broken Circle. Yale University Press, 1991.