Issues in forest conservation
IUCN--the World Conservation Union , World Wide Fund for Nature
W.J. Jackson and A.W. Ingles
IUCN, World Conservation Union : World Wide Fund for Nature 1998 Issues in forest conservation
所蔵館2館
James F. Eder
IUCN--the World Conservation Union , World Wide Fund for Nature 1997 Issues in forest conservation
所蔵館1館
R.J. Fisher
IUCN : World Wide Fund for Nature 1995 Issues in forest conservation
Richard G. Tarasofsky
IUCN--the World Conservation Union , World Wide Fund for Nature 1995 Issues in forest conservation