Dyfyniad APA
United States Geological Survey. (1969). Techniques of water-resources investigations of the United States Geological Survey: Book 3: Applications of hydraulics, chap. A 8. U.S. Dep. of Interior.
Dyfyniad Arddull Chicago
United States Geological Survey. Techniques of Water-resources Investigations of the United States Geological Survey: Book 3: Applications of Hydraulics, Chap. A 8. Washington, D.C: U.S. Dep. of Interior, 1969.
Dyfyniad MLA
United States Geological Survey. Techniques of Water-resources Investigations of the United States Geological Survey: Book 3: Applications of Hydraulics, Chap. A 8. U.S. Dep. of Interior, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.