References: Hydrology

Leopold, Luna. The Rapids and the Pools — Grand Canyon. Washington, D.C.: Geological Survey Professional Paper 669-D, 1969.
Training, U. S. National Committee for the International Hydrological Decade Work Group on Education and. Hydrology and Water Resources; a Syllabus of References: For Teaching Introductory Courses in the Water Environment. National Academies, 1972.
Unesco, ed. Status and Trends of Research in Hydrology 1965-74: Bilan et Tendances de La Recherche En Hydrologie 1965-74. Studies and Reports in Hydrology 10. Paris: Unesco, 1972.
Unesco, ed. Scientific Framework of World Water Balance. Technical Papers in Hydrology 7. Paris: Unesco, 1971.
Nace, Raymond L. Water and Man: A World View; the International Hydrological Decade. Unesco and Its Programme. Paris: Unesco, 1969.
Korzun, V. I., and Mezhduvedomstvennyĭ komitet SSSR po mezhdunarodnomu gidrologicheskomu desi︠a︡tiletii︠u︡, eds. World Water Balance and Water Resources of the Earth. Studies and Reports in Hydrology 25. Paris: Unesco, 1978.
Horton, Robert E. “Erosional Development of Streams and Their Drainage Basins: Hydrophysical Approach to Quantitative Morphology.” Geological Society of America Bulletin 56, no. 3 (1945): 275–370.