(ii) Non-recurrent publications: Geneva timber and forest discussion papers (6); Study papers on forest sector outlook, forest resource assessment, state of forest policies and institutions, trade and environment (4);
㈡ 非经常出版物:日内瓦木材和森林讨论文件(6)；森林部门前景、森林资源评估、森林政策和机构状况、贸易和环境研究文件(4)；