TY  - BOOK
TI  - IUCN red list categories and criteria: version 3.1. 
SN  - 2831706335
U1  - Biyoçeşitlilik 333.952216 
PY  - 2001///
CY  - Gland, Switzerland
PB  - IUCN--The World Conservation Union
KW  - Endangered species
KW  - Rare animals
KW  - Biodiversity
KW  - Red list
KW  - Biodiversity conservation
N1  - Includes bibliographical references; Online version: http://www.iucnredlist.org/static/categories_criteria_3_1
ER  -