Locher, J. L. <br/><br/>
Mark Boyle's journey to the surface of the earth / 
J.L. Locher. 
 - Stuttgart ;  Mayer,   1978. 
 - 270p. :   ill(some col.), maps(some col.),ports.(some col.) ;  24cm. 
<br/><br/><label>LC Class. No.: </label>N6797.B664