Books — Global Red Lists & Red Data Books
A Preliminary List of Rare Mammals Including Those Believed to be Rare but Concerning Which Detailed Information is Still Lacking
This document is available in English and French.
A Preliminary List of Rare Mammals Including Those Believed to be Rare but Concerning Which Detailed Information is Still Lacking. April 1964. Compiled by the IUCN Operations Intelligence Centre, Morges. Published as a Special Supplement to IUCN Bulletin (new series) No. 11.