1.

図書
図書
1. Economic geography : industries and resources of the commercial world
by Colby and Foster
出版情報: [Madison] : Published for the United States Armed Forces Institute by Ginn, 1944
シリーズ名: War Department education manual ; EM 222
2.

図書
図書
2. Investigations in industries and resources to accompany economic geography
by Colby and Foster
出版情報: [Washington, D.C.] : Published for the United States Armed Forces by Ginn, [1944]
シリーズ名: War Department education manual ; EM 222