Kōreika shakai to yoka ni kansuru chōsa kenkyū
Subtitle: kokoro tanoshii kōreika shakai o kizuku tame ni.
Contributors: Yoka Kaihatsu Sentā (Japan)
Series: Yoka Kaihatsu Sentā chōsa kenkyū hōkokusho -- 61
Publisher: Yoka Kaihatsu Sentā
Published: 1987
Place of publication: [Tokyo]
Language: jpn
Number of pages: 166
Subjects: Aged -- Japan -- Recreation.
Notes: Cover title.