Cita APA (7a ed.)

Pearce, D. W. (1993). Economic values and natural world (1st published.). Earthscan.

Cita Chicago Style (17a ed.)

Pearce, David William. Economic Values and Natural World. 1st published. London: Earthscan, 1993.

Cita MLA (9a ed.)

Pearce, David William. Economic Values and Natural World. 1st published. Earthscan, 1993.