Cita APA

Symposium Held by the species survival comissión (1984: nov. 7-9 : Madrid). (1987). The road to extinction: Problems of categorizing the status of taxa threatened with extinction. Switzerland: UICN.

Citación estilo Chicago

Symposium Held by the species survival comissión (1984: nov. 7-9 : Madrid). The Road to Extinction: Problems of Categorizing the Status of Taxa Threatened With Extinction. Switzerland: UICN, 1987.

Cita MLA

Symposium Held by the species survival comissión (1984: nov. 7-9 : Madrid). The Road to Extinction: Problems of Categorizing the Status of Taxa Threatened With Extinction. Switzerland: UICN, 1987.