United States Geological Survey Hydrological Unit Code: 02-04-02-05- Brandywine-Christina Watershed U.S. Geological Survey.
미국 지질조사국 지명 정보 시스템: 브랜디와인 강 (크리스티나 강) United States Geological Survey Hydrological Unit Code: 02-04-02-05- Brandywine-Christina Watershed U.S. Geological Survey.