（人力）温州みかん階級選果機
Digital Collection of the Farm Museum, the University of Tokyo | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
ヤブムラサキ
Database of vascular plant specimens collected from 1922 to 1990 and stored at the Herbarium and Forest Museum in the University of Tokyo Chiba Forest | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
ナガサキシダ
Database of vascular plant specimens collected from 1922 to 1990 and stored at the Herbarium and Forest Museum in the University of Tokyo Chiba Forest | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
イノデ
Database of vascular plant specimens collected from 1922 to 1990 and stored at the Herbarium and Forest Museum in the University of Tokyo Chiba Forest | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
主要林業国における林野制度の概要
林野庁
The Forest Policy Archive | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
坂野邊新田の發達
長井 政太郎
The Forest Policy Archive | Graduate School of Agricultural and Life Sciences / Faculty of Agriculture
