Cita APA

IUCN. (1963). The Easement as a conservation tecnique 1972. [S.l.]: [s.n.].

Citación estilo Chicago

IUCN. The Easement As a Conservation Tecnique 1972. [S.l.]: [s.n.], 1963.

Cita MLA

IUCN. The Easement As a Conservation Tecnique 1972. [S.l.]: [s.n.], 1963.