Nigam, N.C. <br/><br/>
Digital Calculation of Response Spectra from Strong - Motion Earthquake Records / 
N.C. Nigam & P.C. Jennings. 
 - Berkeley, California :  National Information Service for Earthquake Engineering,  1968. 
 - 65 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earthquake Engineering