Executive summary : the world zoo conservation strategy : the role of the zoos and aquaria of the world in global conservation 1993
Tigers of the world : the biology, biopolitics, management, and conservation of an endangered species 1987
The world zoo conservation strategy : the role of the zoos and aquaria of the world in global conservation 1993
Symposium : zoos and conservation, held in the lecture hall of the Zoological Society of London, June 23rd, 24th and 25th, 1964 : report 1964
