南海、南沙群岛地图资料收集。

The Map Collection of the John Carter Brown Library of nearly 3,000 items
The online digital map collections searchable and accessible through the OldMapsOnline portal.
The National Library’s Rare Maps Collection forms part of the valuable Rare Materials Collection held in its Lee Kong Chian Reference Library
The online map collections represents only a small fraction that have been converted to digital form.
The PCL Map Collection includes more than 250,000 maps, yet less than 20% of the collection is currently online.
A selection of our materials has been digitally imaged and is offered both as true picture images and georeferenced copies.
Yale University Map Collection
The David Rumsey Map Collection was started over 30 years ago and contains more than 150,000 maps.
Historic Maps Collection @ Princeton University
The National Bureau of Asian Research and Sasakawa USA have partnered on a new innovative platform for analyses and data on maritime security called the Maritime Awareness Project (MAP)
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