Kakyō no shōhō
By: Yamashita Masami cho.
Publisher: Dōyūkan
Published: 1981
Place of publication: Tokyo
Language: jpn
Number of pages: 182
Subjects: Trade secrets -- Asia, Southeastern; Trade secrets -- China; National characteristics, Chinese
Notes: Subtitle in colophon: Sono hassō to kōdōryoku.

Bibliography: p. 181-182.