Author
United States. Defense Mapping Agency. Hydrographic/Topographic Center
Japan. Kaijō Hoanchō. Suirobu
49
Canadian Hydrographic Service
38
Australia. Hydrographic Service
21
France. Service hydrographique et océanographique de la marine
20
Brazil. Diretoria de Hidrografia e Navegação
12
Great Britain. Hydrographic Department
10
Great Britain. Admiralty
8
Netherlands. Hydrografisch Bureau
6
Norges sjøkartverk
6
Deutsches Hydrographisches Institut
5
Argentina. Servicio de Hidrografía Naval
4
Germany. Bundesamt für Seeschifffahrt und Hydrographie
4
Instituto Hidrográfico de la Armada
4
Norges sjokartverk
4
Instituto Hidrográfico (Portugal)
3
Korea (South). Suroguk
3
Belgium. Service hydrographique de la côte
2
Indonesia. Dinas Hidro-Oseanografi
2
Indonesia. Jawatan Hidro-Oseanografi
2
Institut géographique national (France)
2
Instituto Geográfico Nacional Tommy Guardia
2
Instituto Hidrográfico de la Marina (Spain)
2
Inter American Geodetic Survey
2
Istituto idrografico della Marina
2
Royal Danish Hydrographic Office
2
United States. Defense Mapping Agency. Topographic Center
2
British Geological Survey
1
Charles, D'A. H.
1
France. Service hydrographique et oc[ACUTE]eanographique de la marine
1
France. Service hydrographique et oc[acute]eanographique de la marine
1
Geodaetisk institute (Denmark)
1
Germany (East). Seehydrographischer Dienst
1
Germany (West). Bundesamt für Seeschiffahrt und Hydrographie
1
India. Naval Hydrographic Office
1
Instituto Hidrogáfico de la Armada
1
Instituto Oceanográfico de la Armada (Ecuador)
1
Istituto idrografico (Italy)
1
Japan. Kaijō Hoanchō. Suribu
1
Lowe, G. E.
1
Netherlands. Koninklijke Marine, Dienst der Hydrografie
1
New Zealand. Hydrographic Office
1
Philippines. Bureau of Coast and Geodetic Survey
1
Sandilands, R. W., 1924-
1
South Africa. Directorate of Hydrography
1
South Africa. Directorate of Surveys and Mapping
1
South Africa. Navy Hydrographic Office
1
United States. Naval Oceanographic Office
1
Western Australia. Dept. of Marine and Harbors
1
Wills, R.
1