Yunyū shokuhin
By: [henshū Tōkyō-to Eiseikyoku Kankyō Eiseibu Shokuhin Eiseika]
Series: Shokuhin eisei Q & A shirīzu -- 2
Publisher: Tōkyō-to Eiseikyoku
Published: 1990
Place of publication: Tōkyō
Language: jpn
Number of pages: 25