Groombridge, B. (1992). Global biodiversity: Status of the earth's living resources. IUCN Press.
Cita Chicago (17th ed.)Groombridge, Brian. Global Biodiversity: Status of the Earth's Living Resources. London: IUCN Press, 1992.
Cita MLA (9th ed.)Groombridge, Brian. Global Biodiversity: Status of the Earth's Living Resources. IUCN Press, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.