Elephants, economics and ivory.
BARBIER, Edward.B[et al...],
Elephants, economics and ivory. - ed. - London : Earthscan Publications Ltd, 1990. - xiii;154p : ill ; cm.
Includes index.
Elephants, economics and ivory. - ed. - London : Earthscan Publications Ltd, 1990. - xiii;154p : ill ; cm.
Includes index.