Shu zi dian hua tong xin yuan li
By: Ni Weizhen, Wang Qinsheng deng bian zhu.
Contributors: Wang, qinsheng.
Edition: Di 1 ban.
Publisher: Ren min you dian chu ban she; Xin hua shu dian Beijing fa xing suo fa xing
Published: 1982
Place of publication: Beijing
Language: chi
Number of pages: 595
Subjects: Digital communications.; Telephone.
Other titles: Shuzi dianhua tongxin yuanli.
Notes: Cover title also in pinyin: Shuzi diahhua tongxin yuanli.