TY  - BOOK
AU  - Waldorf.W.A.
AU  - Sollid.E.
AU  - Newell..C.S.
TI  - The Energy Method of Calculating natural Vibration Periods of Structures Applied to Dams
T2  - Technical Memorandum
PY  - 1939///
CY  - United States Department of the Interior, Bureau of Reclamation.
PB  - United States
KW  - Engineering
ER  -