住友グループ
By: Nishikiori Hisashi cho
Series: Biggu bijinesu sirīzu -- 9
Publisher: Yunion Shuppansha
Published: 1975
Place of publication: Tōkyō
Language: jpn
Number of pages: 264
Subjects: Business enterprises; Sumitomo Group
Other titles: Sumitomo Gurūpu
Notes: In Japanese.