Part first comments on the need of placing these signals to guide vessels in safety, and reviews the early systems and the progress made in this field. (Serial)
Lighthouses
Arch, Lond
1897
Aufsatz (Zeitschrift)
Englisch
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TIBKAT | 2006
|SLUB | 2006
|SLUB | 2000
|Engineering Index Backfile | 1920
Engineering Index Backfile | 1922