Griffin, Donald R. <br/><br/>
Echoes of bats and men. 

 - London  Heinemann  1959. 
 - 156 p.  illus.  19 cm. 
 - Science study series, S4 .
<br/><br/><label>Subjects--Index Terms: </label>Sound-waves.  Echolocation (Physiology)  Orientation.  Bat sounds. 
<br/><br/><label>Dewey Class. No.: </label>152.2  / GRI