TY  - BOOK
ED  - E.U.A. Bureau of Reclamation
TI  - Hydraulic and excavation tables
U1  - 532.9 
PY  - 1974/// (c.1957)
CY  - Washington
PB  - Government Printing Office
KW  - Excavación
KW  - Tablas
KW  - Hidráulica
ER  -