HEC-1, flood hydrograph package :
user's manual.
APA Citation
Hydrologic Engineering Center (U.S.). (1990). HEC-1, flood hydrograph package: user's manual. Davis, CA: Hydrologic Engineering Center, US Army Corps of Engineers.
MLA Citation
Hydrologic Engineering Center (U.S.). HEC-1, Flood Hydrograph Package: User's Manual. Davis, CA: Hydrologic Engineering Center, US Army Corps of Engineers, 1990.
Warning: These citations may not always be complete (especially for serials).