APA (7th ed.) Citation

Williams, J. R., & Hann, R. W. (1973). HYMO: Problem-oriented computer language for hydrologic modeling : users manual. Agricultural Research Service, U.S. Dept. of Agriculture, Southern Region.

Chicago Style (17th ed.) Citation

Williams, Jimmy R., and R. W. Hann. HYMO: Problem-oriented Computer Language for Hydrologic Modeling : Users Manual. [Place of publication not identified]: Agricultural Research Service, U.S. Dept. of Agriculture, Southern Region, 1973.

MLA (9th ed.) Citation

Williams, Jimmy R., and R. W. Hann. HYMO: Problem-oriented Computer Language for Hydrologic Modeling : Users Manual. Agricultural Research Service, U.S. Dept. of Agriculture, Southern Region, 1973.