BulletinNathan Clifford Grover, Virginia. Division Of Mineral Resources · First published 2015Open the Tome
Summary of records of surface waters of Washington, 1919-35Nathan Clifford Grover · First published 1940Open the Tome
Floods of Ohio and Mississippi rivers, January-February 1937Nathan Clifford Grover · First published 1938Open the Tome
Surface Water Supply of the United States.United States Geological Survey, Nathan Clifford Grover, Marshall Ora Leighton · First published 1920Open the Tome
