Cita APA (7a ed.)
(1970). Productivity and conservation in northern circumpolar lands. IUCN.
Cita Chicago Style (17a ed.)
Productivity and Conservation in Northern Circumpolar Lands. Morges: IUCN, 1970.
Cita MLA (9a ed.)
Productivity and Conservation in Northern Circumpolar Lands. IUCN, 1970.
Precaución: Estas citas no son 100% exactas.