kōkyō tōshi, kōkyō jigyō no mondaiten to kaizensaku
By: Yusa Hiroyuki
Series: Chōsa to jōhō -- dai 304-gō = -- Issue brief -- 304; Chōsa to jōhō -- dai 304-gō.
Publisher: Kokuritsu Kokkai Toshokan Chōsa oyobi Rippō Kōsakyoku
Published: 1997
Place of publication: Tōkyō
Language: jpn
Number of pages: 12