IUCN red list categories / prepared by the IUCN Species Survival Commission, as approved by the 40th meeting of the IUCN Council, Gland, Switzerland, 30 November 1994.

समान संसाधन

• IUCN red list of threatened species
  प्रकाशित: (2000)
• 1997 IUCN red list of threatened plants /
  प्रकाशित: (1998)
• 1988 IUCN red list of threatened animals /
  प्रकाशित: (1988)
• 1996 IUCN red list of threatened animals /
  प्रकाशित: (1996)
• The IUCN invertebrate red data book /
  द्वारा: Wells, Sue
  प्रकाशित: (1983)