EC no nōsei kaikaku
By: Yaguchi Katsuya
Series: Chōsa to jōhō -- dai 173-gō = -- Issue brief -- no. 173; Chōsa to jōhō -- dai 173-gō.
Publisher: Chōsa oyobi Rippō Kōsakyoku
Published: 1992
Place of publication: Tōkyō
Language: jpn
Number of pages: 18