Simon, Ruth B.,  1917- <br/><br/>
Earthquake interpretations :  a manual for reading seismograms / 
Ruth B. Simon 
 - Los Altos, Calif. :  W. Kaufmann,  1981 
 - 150 p. :  ill. ;  26 cm. 
<br/><br/> 'Seismological tables by Harold Jeffreys and K.E. Bullen' : p. [123]-150 
<br/><br/>Bibliography : p. 120-122 
<br/><br/><label>ISBN: </label>0913232815 
<br/><br/><label>LCCN: </label>81-8428 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seismology