Shogaikoku ni okeru seishōnen no shizen taiken ni kansuru chōsa hōkoku
Subtitle: Heisei 3-nendo Itō Chū Kinen Zaidan itaku kenkyū
By: Shizen Taiken Katsudō Kokusai Kenkyūkai, daihyō Uchida Chūhei
Publisher: Itō Chū Kinen Zaidan
Published: 1992
Place of publication: Tōkyō
Language: jpn
Number of pages: 226