水源をめざして
Subtitle: jidenteki essē
By: Tōyama Hiraku
Publisher: Tarō Jirōsha Editasu
Published: 2017
Place of publication: Tōkyō
Language: jpn
Number of pages: 254
ISBN-13: 9784811804880
Subjects: Mathematicians; Biography
Other titles: Suigen o mezashite
Notes: Ondemando-ban"--Colophon.