Dansk telegrafis pionertid 1850-1875
By: Pierre Mengel.
Publisher: Statens teletjeneste; Telecom Denmark
Published: 1990
Place of publication: [Tåstrup]
Language: dan
Number of pages: 72
Subjects: Telegraph -- Denmark -- History -- 19th century.
Notes: Includes bibliographical references (p. 69-71).
Summary in English.