Creator
- Virtual Shanghai Project23
- California. Metropolitan Transportation Commission2
- California. Department of Fish and Game. Marine Resources Region1
- Coastal Services Center (U.S.)1
- County of San Mateo Information Services Department1
- Edward Stanford Ltd.1
- Jihyun Geographical Institute1
- National Atlas of the United States1
- Shanghai (China : International Settlement). Municipal Council1
- United States. Bureau of Transportation Statistics1
- United States. Department of Commerce1
- United States. National Ocean Service1
- United States. National Oceanic and Atmospheric Administration1