Thestrup, P., & Johansen, H. C. Denmark as a nodal point in the international telegraph network in the 1870s.
Chicago Style CitationThestrup, Poul, and Hans Chr Johansen. Denmark As a Nodal Point in the International Telegraph Network in the 1870s.
MLA CitationThestrup, Poul, and Hans Chr Johansen. Denmark As a Nodal Point in the International Telegraph Network in the 1870s.
Warning: These citations may not always be 100% accurate.