Waldorf.W.A. Sollid.E. Newell..C.S. <br/><br/>
The Energy Method of Calculating natural Vibration Periods of Structures Applied to Dams 

 - United States Department of the Interior, Bureau of Reclamation.  United States  1939 
 - 43p.  Cht.,Fig and Table 
 - Technical Memorandum  585 .
<br/><br/><label>Nat. Bib. No.: </label>936 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>627.13  / WAL