Kore de wakaru nōyaku
Subtitle: motto tsukaō motto ikasō konna gijutsu
Series: Tokkyo mappu shirīzu -- 22
Publisher: Tokkyochō
Published: 2001
Place of publication: Tōkyō
Language: jpn
Number of pages: 334
Subjects: Patents
Other titles: Nōyaku
Notes: Cover title.