TY  - BOOK
AU  - Carl, Robert D.
AU  - Montalvo, Alfredo E., coaut.
ED  - E.U.A. Army Corps of Engineers. Hydrologic Engineering Cent-
ED  - er
TI  - HGP hydraulics graphics package: user's manual / Robert D. -Carl and Alfredo E. Montalvo
CY  - Davis, California : Army Corps of Engineers, Hydrologic Engineering Center
ER  -