Cita APA (7a ed.)
(1993). Deserts: The encroaching wilderness. IUCN-The World Conservation Union, Mitchell Beazley.
Cita Chicago Style (17a ed.)
Deserts: The Encroaching Wilderness. London: IUCN-The World Conservation Union, Mitchell Beazley, 1993.
Cita MLA (9a ed.)
Deserts: The Encroaching Wilderness. IUCN-The World Conservation Union, Mitchell Beazley, 1993.
Precaución: Estas citas no son 100% exactas.