Cita APA (7a ed.)

Middleton, N., & O'Keefe, P. (2001). Redefining sustainable development. Pluto.

Cita Chicago Style (17a ed.)

Middleton, Neil, y Phil O'Keefe. Redefining Sustainable Development. London [etc.]: Pluto, 2001.

Cita MLA (9a ed.)

Middleton, Neil, y Phil O'Keefe. Redefining Sustainable Development. Pluto, 2001.