TY  - CHAP
A1  - IUCN
C1  - Gland, Switzerland and Cambridge, UK: IUCN. iv + 32pp.
TI  - 2001 IUCN Red List Categories and Criteria: Version 3.1. Second edition.
UR  - https://web.archive.org/web/20140708123933/http://www.iucnredlist.org/technical-documents/categories-and-criteria/2001-categories-criteria
PY  - 2012
Y2  - 2026-03-08
ER  -