Marusasu jinkō riron
Subtitle: dai 7-han yaku
By: Sakuma Gen yaku[hen]
Contributors: Sakuma, Gen
Publisher: Waseda Daigaku Shuppanbu
Published: 1925
Place of publication: Tōkyō
Language: jpn
Number of pages: 428
Subjects: Population
Work titles: Essay on the principle of population
Notes: List of the author's works: p. 4 (2nd group).