Jōhō tsūshin nettowāku
Subtitle: shisutemu to purotokoru
By: Akimaru Haruo cho
Publisher: Denki Tsūshin Kyōkai; Hatsubaimoto Ōmusha
Published: 1991
Place of publication: Tōkyō
Language: jpn
Number of pages: 203
Subjects: Computer networks; Information networks; Telephone systems
Notes: Includes bibliographical references (p. 155-156) and index.