Nihon jinkō chizu
By: Koyama Masao.
Series: Jiji mondai kaisetsu -- 80; Nyūmon shinsho
Publisher: Kyōikusha
Published: 1978
Place of publication: [Higashi Murayama]; Tokyo : hambai Kyōiku Shuppan Sentā
Language: jpn
Number of pages: 151
Subjects: Older people -- Japan; Labor supply -- Japan; Japan -- Population
Notes: Cover title.