Bakhvalov, N. S. <br/><br/>
Nonlinear theory of sound beams   
by N. S. Bakhvlov, tr. by Robert T. Beyev. 
 - New York  American Inst.of Phy  1987 
 - x, 168p. 
 - American Institute of Physics Translation Series .
<br/><br/><label>ISBN: </label>0883185202 
<br/><br/><label>Dewey Class. No.: </label>534  / N87