Cita APA

Barde, J. -. P., & Pearce, D. W. (1991). Valuing the Environment: Six case studies. London: Earthscan Publications.

Citación estilo Chicago

Barde, Jean - Philippe, y David W. Pearce. Valuing the Environment: Six Case Studies. London: Earthscan Publications, 1991.

Cita MLA

Barde, Jean - Philippe, y David W. Pearce. Valuing the Environment: Six Case Studies. London: Earthscan Publications, 1991.