Παραπομπή σε μορφή APA (7η εκδ.)
National Research Council (U.S.). Committee on U.S. Geological Survey Water Resources Research & ebrary, Inc. (1997). Watershed research in the U.S. Geological Survey. National Academy Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)
National Research Council (U.S.). Committee on U.S. Geological Survey Water Resources Research και Inc ebrary. Watershed Research in the U.S. Geological Survey. Washington, D.C.: National Academy Press, 1997.
Παραπομπή σε μορφή MLA (9th εκδ.)
National Research Council (U.S.). Committee on U.S. Geological Survey Water Resources Research και Inc ebrary. Watershed Research in the U.S. Geological Survey. National Academy Press, 1997.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.