南方産造船用材及び製鐵用其他木炭資源に關する調査
技術院總務部調査課
The Forest Policy Archive | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
治水政策更改の緊要
全国治水砂防協会
The Forest Policy Archive | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
支那炭の性状 其の1
軍需省燃料研究所
The Forest Policy Archive | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture