APA

Pearce D. W., . (1993). Economic values and the natural world. Cambridge, Mass: MIT Press.

Chicago

Pearce David W, . 1993. Economic values and the natural world. Cambridge, Mass: MIT Press.

Harvard

Pearce D. W., . (1993). Economic values and the natural world. Cambridge, Mass: MIT Press.

MLA

Pearce David W, . Economic values and the natural world. Cambridge, Mass: MIT Press. 1993.