金とヒマの研究
Subtitle: asobinagara mōke mōkenagara asobu
By: Kyū Eikan
Series: Q books
Publisher: Nihon Keizai Shinbunsha
Published: 1986
Place of publication: Tōkyō
Language: jpn
Number of pages: 225
Subjects: Investments
Other titles: Kane to hima no kenkyū