Report of the proceedings - Fifth International Conference on Lighthouses and Other Aids to Navigation, Scheveningen 1955
Conférence Internationale des Services de Signalisation Maritime, Scheveningen 1955
International Conference on Lighthouses and Other Aids to Navigation ; 5 ; 1955 ; Scheveningen International Conference on Lighthouses and Other Aids to Navigation ; 5 (Scheveningen) : 1955.06.
1955
Getr. Zählung
Ill., graph. Darst.
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