APA (7th ed.) Citation

Graf, J. B. (1984). Measurement of bedload discharge in nine Illinois streams with the Helley-Smith sampler. U.S. Geological Survey, Water Resources Division.

Chicago Style (17th ed.) Citation

Graf, Julia B. Measurement of Bedload Discharge in Nine Illinois Streams with the Helley-Smith Sampler. Urbana, Ill.: U.S. Geological Survey, Water Resources Division, 1984.

MLA (9th ed.) Citation

Graf, Julia B. Measurement of Bedload Discharge in Nine Illinois Streams with the Helley-Smith Sampler. U.S. Geological Survey, Water Resources Division, 1984.