Dōtaku no nazo o toku
Subtitle: Yasu-chō chōsei 30-shūnen kinen
By: Yasu no Rekishi o Kangaeru Shinpojūmu
Contributors: Yasu-chō Kyōiku Iinkai
Publisher: Yasu-chō Kyōiku Iinkai
Published: 1985
Place of publication: Shiga-ken Yasu-gun Yasu-chō
Language: jpn
Number of pages: 20
Notes: Errata slip inserted.