Cerveny, Vlastislav <br/><br/>
Theory of seismic head waves / 
Vlastislav Cerveny and Ravi Ravindra 
 - Toronto :  University of Toronto Press,  c1971 
 - xvi, 312 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0802000495 :  USD 18.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Head waves
<br/><br/><label>Dewey Class. No.: </label>551.22