Tham khảo Lưu_vực

  1. ↑ "drainage basin". The Physical Environment. University of Wisconsin–Stevens Point. Archived from the original on March 21, 2004.
  2. ↑ "What is a watershed and why should I care?". university of delaware. Retrieved 2008-02-11.
  3. ↑ Lambert, David (1998). The Field Guide to Geology. Checkmark Books. pp. 130–13. ISBN 0-8160-3823-6.
  4. ↑ "Recommended Watershed Terminology". watershed.org. Retrieved 2011-08-26.
  5. 1 2 "Hydrologic Unit Geography". Virginia Department of Conservation & Recreation. Retrieved 21 November 2010.
  6. ↑ Encyclopaedia Britannica 2004
  7. ↑ Encarta Encyclopedia articles on Amazon River, Congo River, and Ganges Published by Microsoft in computers.
  8. ↑ Bell, V. A.; Moore, R. J. (1998). "A grid-based distributed flood forecasting model for use with weather radar data: Part 1. Formulation" (PDF). Hydrology and Earth System Sciences. Copernicus Publications. 2: 265–281. doi:10.5194/hess-2-265-1998.
  9. ↑ Subramanya, K (2008). Engineering Hydrology. Tata McGraw-Hill. p. 298. ISBN 0-07-064855-7.
  10. ↑ "EN 0705 isochrone map". UNESCO. Retrieved March 21, 2012.
  11. ↑ "Isochrone map". Webster's Online Dictionary. Retrieved March 21, 2012.
  12. ↑ http://www.strategicforesight.com/inner-articles.php?id=310#.WA9Ia-V97GI